Since its debut, FAW-Volkswagen B9 has quickly won enthusiastic response from the market with its diversified configuration options, especially its 1.5T high-efficiency power system, which shows more outstanding performance compared with the one launched in the same period, and has become the first choice in the hearts of many consumers. So, what remarkable changes has this Magotan B9 brought? How impressive is its actual performance? Let’s explore together. Magotan B9 also performs well in sound insulation, and its body structure and the use of sound insulation materials effectively isolate the noise inside the car. Both urban driving and high-speed cruising can provide drivers and passengers with a quieter ride environment. In contrast, Passat Pro’s sound insulation effect is slightly insufficient.

Body size comparison, performance of Magotan B9

The body size of Magotan B9 is 4990*1854*1487mm, and the wheelbase is 2871mm. Compared with the old models, the size of Magotan B9 is a big circle, which belongs to the mainstream level in the same class, and the interior space has also been greatly improved.

Larger air intake grille and exquisite chrome decoration

On the front face, the new Magotan B9 adopts a larger air intake grille design, and the chrome decoration also highlights the exquisiteness of the vehicle, which is closely connected with the whole China Net. The diversion grooves and fog lamps on both sides of the bottom form a sports kit, which is also the difference between the Magotan B9 and the old models. In addition, the front enclosure is decorated with a honeycomb grid and a diffuser is designed to enhance the sense of movement of the vehicle. Coming to the side of the car body, the new Magotan B9 is not much different from the design of the old models in terms of lines. The sharp waistline runs from the front of the car to the rear of the car, lengthening the visual effect of the vehicle. The side skirt is decorated with chrome plating, so you don’t have to worry about bumping when the vehicle is driving in bad road conditions. In terms of the rear end, the Magotan B9 model has not changed much, and the penetrating taillight components have high recognition after lighting. The rear enclosure is also designed in a sporty way to show the difference between Magotan B9. The rear enclosure is decorated with chrome, and the diffuser decoration is designed in the middle, and the exhaust pipe decoration is cancelled.

Central control led by big screen, analysis of new Magotan B9 configuration.

After arriving in the car, the interior design of Magotan B9 hasn’t changed much, but the details have been adjusted. The automatic comfort type and the automatic enterprising type adopt an 8-inch central control screen, while the automatic enjoyment type and the automatic luxury type adopt a 9.2-inch central control screen. Unfortunately, the wireless charging of the mobile phone is changed to optional. A penetrating air outlet is added to the center console to enhance the sense of interior grade, and a roller shutter is also added to the cup holder area, with little change in other aspects. The steering wheel adopts a flat-bottomed design, which increases the sports atmosphere of the interior. Magotan B9 comes standard with tire pressure reminder, cruise control, automatic parking, uphill assist, engine start and stop, LED daytime running lights, automatic air conditioning, rear seat air outlet, temperature zone control, heating, electric folding, automatic folding after locking, etc. As a joint venture medium-sized car, this configuration is relatively rich.

Strong performance of 1.5T and 2.0T engines.

Magotan B9 is equipped with 1.5T and 2.0T engines, matching with a 7-speed dual-clutch gearbox. Among them, the 2.0T turbocharged four-cylinder engine has a maximum power of 220 HP and a peak torque of 350 Nm. Equipped with a 7-speed wet dual-clutch gearbox, it provides four driving modes: economy, comfort, sports and personalization to meet different driving needs. The official acceleration time of 100 kilometers is 7.4 seconds, while the comprehensive fuel consumption of WLTC is only 6.71L/100km, which shows excellent performance and low fuel consumption. Therefore, the overall power and acceleration feeling of Magotan B9 is still excellent. In addition, the comprehensive fuel consumption of the 1.5T model is 5.85 liters per 100 kilometers, which has more obvious advantages in fuel economy.

Generally speaking, this car is still very good. MagotanB9 and Magotan B9 are national family cars. The new generation of Magotan B9, which has just been listed, seems to stand out from the crowd. The novel design and larger interior space also make it a little fresh. Of course, Magotan B9 still has the aura of "national sedan", which is probably the only place where Magotan B9 is higher than other models. What do you think of this car? Some netizens teased: There is no national sedan outside Magotan B9.

　　Reading tips

　　The raging epidemic has disrupted the pace of life and work of many people, and also ignited the "home economy" including live broadcast. This Spring Festival, Jiang Heng, a 20-year-old rural girl, returned to live broadcast after only four days’ rest, and accompanied nearly 20,000 fans online for this exceptionally long holiday … …

　　"During the epidemic, everyone must pay more attention to protection and go out as little as possible. If you have nothing to do, you can go to the live broadcast room in Hengheng. I will chat with you and sing your favorite songs … …” At 6 o’clock on the morning of March 10th, Jiang Heng, dressed properly, was already sitting in front of the computer and officially started the live broadcast of the day.

　　Live stream economy, online celebrity, which is not limited by time and space, has made great strides at present, and the low employment threshold has also enabled many grassroots people who have walked out of the countryside to find a way to break through the trend. A few days ago, the reporter interviewed three anchors from online celebrity, who were born in rural areas, to find out their stories of life counterattack.

　　Catering executives transform into anchors.

　　Jiang Heng’s hometown is in Shuangyang, Changchun, and he was promoted from a waiter to a supervisor. More than half a year ago, due to too much entertainment, Jiang Heng was admitted to the hospital. After leaving the hospital, she resigned decisively. After resigning, she was introduced by a friend to the current live broadcast company. After a simple interview, she became the key training object of the company because of her sweet appearance and steady personality.

　　After joining the company, she ate and lived in the studio provided by the company. The room of more than ten square meters is warmly decorated. The company is equipped with a set of live broadcast equipment. The sound card, camera and lighting are all deployed by professional teachers according to her voice and appearance characteristics. This job is a surprise for Jiang Heng, and the working environment is more comfortable.

　　"At first, I felt that the live broadcast was very simple. After a long time, I found that there was actually a lot to learn." Jiang Heng told reporters that on the surface, it is easy for the live broadcast industry to make money, but it takes a lot of thought to ensure the stability of income. Usually, she will watch more live broadcasts of others, learn from experience and find out the shortcomings.

　　Within more than a month after the outbreak, the number of fans of Jiang Heng soared by more than 10,000. At the worst of the epidemic, the live broadcast rooms are discussing related topics. Jiang Heng is also cooperating with everyone’s schedule to extend the live broadcast time appropriately, and often reminds everyone to pay attention to protection and comfort fans in the epidemic area. "I hope that the epidemic will pass quickly and everything will be fine." Jiang Heng said.

　　In the past, Jiang Heng’s family was very opposed to her being an anchor, but now there is no prejudice, and they have also opened accounts to increase the popularity of Jiang Heng’s live broadcast room. "In fact, the anchor also has many rising channels, and I plan to further my talents in the future." Jiang Heng hopes to work hard and save more money to lay a better economic foundation for the future.

　　Craftsmen try to find the market to test the water live.

　　Yu Jianhua, 43, was born in Quannongshan Town, Lianhuashan Eco-tourism Resort in Changchun. He has worked as a tower crane and a barbecue chef. Because he loved straw weaving since he was a child, in June 2018, he founded Changchun Limin Fangcao Farmers’ Professional Cooperative. In just four months, he applied for six intellectual property rights protection with his own weaving method and design.

　　In order to open the market of straw-woven products, Yu Jianhua took two small videos of the straw-woven scene with the help of the popularity of the live broadcast platform. Unexpectedly, one of the videos showing the deaf-mutes working on small pendants suddenly became popular.

　　The live account has increased by 40,000 fans in three days, which made him too excited to sleep. "I remember it very clearly. It was August 21, 2019. At 8 o’clock in the evening, I specially rushed to the office from home to try live broadcast for the first time."

　　Since then, Yu Jianhua will broadcast live on time every night from 8: 00 to 10: 00, and the "typhoon" has become more and more skilled. The number of fans has gradually increased to more than 80,000. Some people want to study in this industry, as well as some leaders of foreign cooperatives, cadres who want to develop poverty alleviation industries and merchants engaged in the import and export trade of handicrafts.

　　"The live broadcast has a great influence on me. It not only exercises my expression ability, but also gives me a deeper understanding of the craft. I want people who like this industry not only to learn the compilation skills, but also to benefit from it." Yu Jianhua said that through the live broadcast platform, Fangcaoshe’s products were sold out of stock, and its brand influence was growing.

　　Affected by the epidemic, Fangcaoshe has not resumed work, but this has not delayed the normal live broadcast work. As the first person to draft the live broadcast, he now adjusts the daily live broadcast to once a week, and puts more energy into developing the industry. He plans to unite the leaders of straw weaving cooperatives all over the country to make straw weaving into a large-scale, high-quality value-added industry and take the brand development route.

　　The working boy became the "online celebrity" with goods.

　　Liu Jinyin, 29, was born in Shi Cun, Block 3, Majie Street, Hejiang County, Luzhou City, Sichuan Province. After dropping out of school, she began to learn crafts and work everywhere. Two years ago, Liu Jinyin, who failed to start a business, saw that some workers made money on the live broadcast platform in their spare time and wanted to try it.

　　Liu Jinyin, who tried the live broadcast of water for the first time, went from trial and error to skilled technology, and his income and expenditure began to have a surplus. Later, the staff of the platform made a special trip from Beijing to Liu Jinyin’s home to introduce his experience from dropping out of school to playing live broadcast and then influencing others. Since then, he has become popular and the number of fans has risen rapidly.

　　After breaking into fame, Liu Jinyin, who has been living in rural areas by live broadcast, began to sell mountain products, and set the agricultural products base of the online shop in Shiding Mountain, a poor village more than 70 kilometers away from home. The local native products raised and planted in the original ecology are of high quality and are very popular with fans. In 2019, all kinds of agricultural and sideline products were sold for nearly 5 million yuan, which helped the villagers to increase their income by more than 3,000 yuan per capita, and made the villagers in Shiding Mountain feel the "power" of online celebrity.

　　During the epidemic, express delivery stopped in some areas, and Liu Jinyin’s newly opened physical store with an investment of 100,000 yuan was also forced to close, which affected his income to some extent. Fortunately, the current express delivery is gradually recovering, and the income is slowly getting better.

　　Today, Liu Jinyin’s live account has 850,000 fans, and the sales of mountain products have been in short supply. This year, he plans to increase the total sales to more than 20 million yuan. In the future, he hopes to continue to create well and help more poor mountainous areas get rid of poverty and become rich.

　　"My culture is not high. If I don’t change and innovate, fans will get bored sooner or later." Liu Jinyin was not lost by the aura of "online celebrity". He rationally told reporters that the competition in the industry was becoming more and more fierce, and he had to bear great pressure every day. He paid attention to current events whenever he had leisure time, and read books on media operation, food and other aspects, so as to make himself more connotative and have development potential.

　　Since the beginning of this year, China’s foreign trade has withstood the pressure and shown strong resilience: in the first 11 months, the total import and export value of goods trade was 37.96 trillion yuan, achieving positive growth year-on-year for two consecutive months, and the stabilization trend continued to consolidate.

　　As one of the "Troika" driving economic growth, foreign trade plays an important role in driving consumption, expanding employment and promoting economic growth.

　　In 2018 and 2022, the scale of foreign trade has successively passed the 30 trillion yuan and 40 trillion yuan mark. Since 2017, it has maintained its position as the largest country in goods trade for six consecutive years, and the trade volume of goods with countries that jointly built the "Belt and Road" has increased by 8% annually & hellip; … Since the new era, China’s foreign trade development has continuously achieved new breakthroughs.

　　"It is necessary to speed up the transition from a big trading country to a strong trading country, consolidate the traditional advantages of foreign trade, cultivate new competitive advantages, expand the development space of foreign trade and actively expand imports." On December 5, 2014, during the 19th collective study in the Political Bureau of the Communist Party of China (CPC) Central Committee, the important exposition of the Supreme Leader General Secretary pointed out the direction for promoting the high-quality development of foreign trade.

　　Since the new era, China’s position in global trade has improved significantly — —

　　During the decade from 2013 to 2022, a series of data confirmed the solid pace of China’s foreign trade development: in 2020, the total trade in goods and services surpassed the United States for the first time and became the largest trading country in the world; The import and export scale of cross-border e-commerce in China has increased from 1 trillion yuan in 2018 to 2 trillion yuan in 2022, entering a period of rapid development; In 2022, the international market share of exports further increased to 14.7%, ranking first in the world for 14 consecutive years … …

　　"The steadily expanding scale, continuously optimized structure and increasing international market share all confirm that the high-quality development of China’s foreign trade is fast and steady." Zhuang Rui, Executive Dean of university of international business and economics Institute of International Economics, said that China is advancing from a big trading country to a powerful trading country, which has provided strong support for stabilizing the macro-economic market.

　　The quality and efficiency of China’s foreign trade have been continuously improved, and new kinetic energy has been continuously released — —

　　The just-concluded Central Economic Work Conference clearly pointed out that it is necessary to speed up the cultivation of new kinetic energy of foreign trade, consolidate the basic disk of foreign trade and foreign capital, and expand intermediate trade, service trade, digital trade and cross-border e-commerce export.

　　In recent years, the "new three kinds" represented by electric manned vehicles, solar cells and lithium batteries have become hot words in the field of foreign trade, and they are the representatives of accelerating the upgrading of foreign trade. In 2022, the export growth rate of China’s electric manned vehicles, solar cells, lithium batteries and other green and low-carbon products all exceeded 60%, and the new export kinetic energy grew rapidly.

　　Since the new era, the vitality of China’s foreign trade entities has been effectively stimulated by accelerating reform and innovation, smoothing logistics channels, continuously optimizing the business environment at ports, and increasing support for small and medium-sized enterprises. In 2022, the number of foreign trade enterprises with import and export performance increased by 5.6% over the previous year. Among them, private enterprises gradually grew into the "main force" of foreign trade, accounting for more than half of the annual import and export scale for the first time, and contributing 80.8% to China’s foreign trade growth.

　　China’s foreign trade "friend circle" has been further expanded — —

　　In addition to maintaining close ties with traditional market trading partners, China is also actively exploring emerging markets such as ASEAN, Africa, Latin America and Central Asia. From 2013 to October 2023, the total import and export volume of China and the countries that jointly built the "Belt and Road" exceeded 21 trillion US dollars. Among them, in terms of RMB, China’s import and export to co-construction countries increased by 19.4% year-on-year in 2022, accounting for 32.9% of China’s total foreign trade value, up by 3.2 percentage points; Imports and exports to other member countries of the Regional Comprehensive Economic Partnership Agreement (RCEP) increased by 7.5% year-on-year; Exports to Africa and Latin America increased by 14.8% and 14.1% respectively.

　　Zhang Yu, director of the International Economic and Trade Research Office of the Institute of Finance and Economics of China Academy of Social Sciences, said that while adhering to a high level of opening up, the effective implementation of RCEP and the continuous expansion of the "Belt and Road" and "friends circle" have opened up new space for deepening foreign trade development. In addition, international economic and trade events including Service Trade Fair, Consumer Expo, Canton Fair and China International Import Expo(CIIE) have also opened new channels for foreign trade transformation and upgrading.

　　At present, the external environment is turbulent, economic factors and non-economic factors are intertwined, and China’s foreign trade development still faces many difficulties and challenges. In response to this situation, China has continuously strengthened top-level design and continuously improved its foreign trade policy system.

　　The General Office of the State Council has successively issued a series of important documents, such as Implementation Opinions on Promoting the Innovative Development of Foreign Trade, Opinions on Promoting the Stable Scale and Excellent Structure of Foreign Trade, and Several Measures on Accelerating the Integrated Development of Domestic and Foreign Trade, which further clarified the path and direction for cultivating new formats, building a platform system, deepening reform and opening up, and creating a legalized, international and convenient trade environment.

　　Zhuang Rui said: China’s foreign trade and industrial fields are constantly advancing in system innovation, scientific and technological innovation, mode innovation and format innovation. Under this background, it is very important to deepen the domestic market and explore the international market to further improve the quality and efficiency of foreign trade. Facing the complicated and severe international situation, China should give full play to the positive role of foreign trade in building a new development pattern and bring more warmth and dividends to the world economy.

　　Reporter: Zou Duowei, Wei Yijun

　　Cartography: Hugo

　　Lowering the mortgage interest rate, reducing the down payment ratio, relaxing the purchase restriction policy, giving tax and fee concessions and subsidies to buyers, increasing the support of provident fund for buying houses, and supporting talents and families with many children to improve their living conditions … … Recently, the real estate control policies have been adjusted in many places across the country, and the loose policies have shown a blowout trend.

　　In order to support the rigid and improved housing demand, the "warm wind" in the real estate market is blowing frequently. What are the specific policies? What benefits have these policies brought to property buyers? How will the policy promote the stable and healthy development of the real estate market? In this regard, the "Workers Daily" reporter combed.

　　Lowering the loan interest rate and reducing the cost of buying a house

　　"The loan interest rate is lowered, and the maximum amount of the first housing provident fund loan is raised. Now buying a house can save a lot of interest." On the fourth weekend of May, Ms. Wang from Jinhua, Zhejiang Province looked at several properties in one breath, ready to take advantage of the east wind of the policy and settle down for herself.

　　"According to the loan amount of 500,000 yuan, the term of 30 years and the equal repayment of principal and interest, the average monthly payment can be reduced by about 45 yuan, and the interest expenditure will be reduced by about 16,000 yuan in the next 30 years." On May 20th, the central bank released the latest loan market quoted interest rate (LPR), and the LPR over five years dropped from 4.6% to 4.45%, down by 15 basis points, from which industry experts gave such a set of calculation data.

　　Earlier, the central bank and China Banking and Insurance Regulatory Commission issued a document pointing out that the interest rate of the first home commercial personal housing loan can be lowered by up to 20 basis points. These two adjustments in the credit policy mean that the minimum loan interest rates for the first suite and the second suite reach 4.25% and 5.05% respectively, which is conducive to reducing the cost of purchasing houses with just-needed and improved needs. In addition to lowering the mortgage interest rate, local governments have also improved their real estate policies in light of local conditions, and relaxed administrative restrictions such as purchase restrictions and sales restrictions by reducing the down payment ratio, narrowing the scope of purchase restrictions, and giving tax concessions to buyers.

　　In terms of relaxing purchase restrictions, Wuhan, Jinan, Taiyuan, Hangzhou, Xiamen and other cities have lowered the threshold for buying houses, among which Wuhan and Jinan have adjusted some areas from the scope of purchase restrictions to the scope of unlimited purchases; Taiyuan new citizens do not need to settle down and social security to buy the first suite, and registered families who have settled in Hangzhou for less than 5 years no longer need social security to buy second-hand houses.

　　In terms of relaxing restrictions on sales, Harbin issued a document to abolish the previous regional restrictions on sales. Buyers can complete the registration of real estate ownership and obtain real estate warrants to be listed and traded. Nanjing and Jinhua’s new houses have been listed and traded for three years from the date of contract filing, and Qingdao, Dezhou, Jining and other places in Shandong have either shortened the time for restricting the transfer of houses or cancelled the policy of restricting sales. In addition, Taiyuan and other places also encourage reducing the down payment ratio of the first set of new commercial housing and giving deed tax subsidies.

　　Provident fund policy promotes the release of home demand

　　Since the beginning of this year, the pace of the introduction of property market regulation policies has been accelerated and intensified. In addition to relaxing the policies of restricting purchases and sales, many places have focused their efforts on the housing provident fund policy, including increasing the amount of provident fund loans and reducing the down payment ratio of provident fund loans.

　　In terms of increasing the amount of provident fund loans, Jinan, Nanjing, Anhui Lu ‘an, Sichuan Ya ‘an and Liangshan have raised the maximum amount of housing provident fund loans. Taking Nanjing as an example, the maximum loanable amount of the second housing provident fund loan for the first time has been adjusted from the current 300,000 yuan/person and 600,000 yuan/household for both husband and wife to 500,000 yuan/person and 1 million yuan/household for both husband and wife, so as to reduce the burden of purchasing houses for groups with improved needs.

　　In terms of reducing the down payment ratio of provident fund loans, Huainan, Anhui, Baotou, Inner Mongolia, Tai ‘an, Shandong and other places have adjusted the minimum down payment ratio of provident fund loans to 20%. Qingdao has abolished the stipulation that the age of second-hand houses is linked to the down payment ratio, and will no longer increase the down payment ratio step by step according to the age of houses, and relax the sum of the loan period and the age of second-hand housing provident fund loans to a maximum of 50 years. In addition, many places have also cancelled the restrictions on household registration of housing provident fund loans in different places.

　　Some experts believe that the adjustment of the provident fund policy is effective for cities with low housing prices and a high proportion of provident fund loans to the total housing prices. It is expected that more second-tier and third-and fourth-tier cities will continue to exert their efforts in the housing provident fund policy in the future to promote the release of potential home ownership demand.

　　Support talents and families with many children to buy houses and live in peace.

　　On May 15th, the relevant departments of Haikou issued a document saying that imported talents can enjoy the same treatment as local residents when they settle down, and those who have not settled down can buy houses in Haikou as long as they have 12 months of social security.

　　Haikou’s new policy of stabilizing the property market reflects a major direction of real estate regulation and control policies. For talented people and families with many children, various localities have introduced special preferential policies such as purchase restriction, loan restriction and provident fund to attract foreign talents to settle down and support families with many children to improve their living conditions.

　　In Taiyuan, qualified talents will receive a one-time housing subsidy of 50,000 yuan to 200,000 yuan according to different levels; In Xiamen, families with two children and above registered in this city can buy a third house; In Yangzhou, Jiangsu Province, the down payment ratio for applying for housing provident fund loans for talented people and families with two or more children has been adjusted from 30% to 20%… …

　　It is generally believed in the industry that the policy of easing the purchase of houses for families with two children and three children will be one of the key directions for the future regulation of the property market. Experts said that a series of real estate support policies will help support the commercial housing market to better meet the reasonable housing needs of buyers, and promote the virtuous circle and healthy development of the real estate industry due to the city’s policy.

Since leaving the circle, the traffic of Xiaomi Automobile, as a new force in building cars, has been rising, and it has also broken 20,000 units with bicycles for two consecutive months. It is precisely because of the traffic blessing of the first explosion model that the rumored first Xiaomi SUV model has been receiving much attention. On the day of the announcement by the Ministry of Industry and Information Technology in December, Xiaomi’s second new car was officially announced, and all kinds of "Farami" imaginary maps on the Internet were overturned at the moment when they saw the official map.

Perhaps, because of the first young man’s "Bao Shi Mi", everyone thinks that it is not impossible for Xiaomi’s first SUV to pay tribute to Ferrari, and it is precisely because of the high expectations buried in the early days that many netizens saw Xiaomi YU7 at first sight, and there was a little bit of loss in their hearts.

Indeed, Xiaomi YU7 is not as amazing as Xiaomi SU7 when it was first launched. The main reason is that the appearance of Xiaomi YU7 is basically a copy and paste of the design language of Xiaomi SU7, and it is still a drop-shaped headlight group, with full muscle lines on the hood, which can identify the lever. Not surprisingly, the front enclosure of Xiaomi YU7 is still equipped with an active air intake grille.

On the side of the car body, Xiaomi YU7 adopts a slip-back posture. The biggest difference from Xiaomi SU7 is that Xiaomi YU7 uses a hidden door handle. Is it difficult to reduce wind resistance? It is worth mentioning that although Xiaomi Yuqi is an SUV model, its body is equipped with aerodynamic design in many places. It can be seen that Xiaomi Yuqi has made a lot of efforts in appearance details in order to reduce energy consumption. Perhaps this is the aerodynamic bridge design between Xiaomi Yuqi and Ferrari. "Heart and soul". From the existing application information, we can see that Xiaomi YU7 provides a variety of wheel hub styles, and offers 19, 20 and 21 inches to choose from, and bright yellow Brembo brake calipers are indispensable. In addition, Xiaomi YU7 is also equipped with lidar, and the high-order intelligent driving has not fallen.

In the rear part, Xiaomi YU7 continues to use the same circular taillight as Xiaomi SU7, with the spoiler above the rear windshield, the electric lifting tail and the rear surrounding diffuser. The sense of movement is rendered in place, which is really more distinctive than most SUV models on the market. If Xiaomi YU7 can be equipped with a circular exhaust layout, it will be even more fried.

Body size, length, width and height of Xiaomi YU7 are 4999/1996/1600mm respectively, and the wheelbase is 3000 mm.. Compared with millet SU7 (length, width and height are 4997/1963/1455mm and wheelbase is 3000mm), millet YU7 only has a large variation in width and height. The interior has not been announced yet, but its layout is not much different from that of Xiaomi SU7. However, judging from the positioning of Xiaomi YU7, the riding experience of Xiaomi YU7 should be better than that of Xiaomi SU7, which pays attention to the sense of control. Maybe you can see the zero-gravity seat. Let’s look forward to it!

In terms of power, Xiaomi YU7 will be equipped with a dual-motor system. The maximum power of the front motor is 220kW, the maximum power of the rear motor is 288kW, and the maximum speed is 253 km/h. The battery will be equipped, and the specific cruising range has not been announced yet. As for the most popular driving force at the moment, it is expected that it will not appear for the time being.

Love comment

With the growing sales of Xiaomi SU7, it shows that Xiaomi has gradually gained market recognition, while the first SUV model has chosen a conservative route, and it is also expected that such operations will occur. Although there is not much bright spot in the appearance of Xiaomi YU7, the "expanded" Xiaomi YU7 is not simply copied and pasted, but focuses on reducing energy consumption. Moreover, according to the previous control and adjustment of Xiaomi Automobile and the performance of the highest speed of 253km/h, I believe that Xiaomi YU7, which pays attention to comfort, will not disappoint people. Looking back at the positioning of Xiaomi YU7, it is obvious that Xiaomi YU7 is running. According to the consistent routine of Xiaomi Automobile, the pricing of Xiaomi YU7 should be lower than that of Model Y, which starts at 249,900 yuan. In this regard, do you think Xiaomi Yuqi is still the next explosion? Welcome to leave a message in the comment area.

　　CCTV News:Winter is the season of high incidence of respiratory diseases. Recently, in Yongchuan District, Chongqing, the number of outpatient and emergency departments in major pediatrics is at a high level, and various measures have been taken to effectively do a good job in the diagnosis and treatment of respiratory diseases in children.

　　In Yongchuan District People’s Hospital of Chongqing, recently, the daily average number of pediatric outpatient and emergency departments is about 800, of which more than 70% are children’s respiratory diseases. The hospital expanded wards, increased beds, and opened night clinics for children to facilitate children to seek medical treatment in time.

　　Wang Jun, Head of Medical Administration Department, Yongchuan District Health and Health Committee, Chongqing:Fever clinics in primary health care institutions should be fully opened, service hours should be extended, weekend clinics should be increased, 12 teams should be set up to help 23 primary health care institutions improve their ability to diagnose and treat respiratory diseases, and various measures should be taken to increase the supply of pediatric medical services, optimize the allocation of medical resources, and improve the ability of pediatric emergency services.

　　High incidence of respiratory diseases, multi-measures to deal with the peak of pediatric visits

　　At present, respiratory diseases have entered a period of high incidence. The number of people with cold, fever, cough and other symptoms has increased significantly in many parts of the country, especially many children infected with respiratory diseases, which not only worries parents, but also increases the number of diagnosis and treatment services in many pediatric hospitals.

　　Recently, the General Office of the National Health and Wellness Commission issued a notice to guide grassroots medical and health institutions to do a good job in health services for respiratory diseases in winter and spring, and put forward measures such as doing everything possible to tap resources to carry out pediatric diagnosis and treatment services and strengthening the support of general hospitals for grassroots medical and health institutions.

　　At 9: 40 in the morning, in the South Campus of Shuangqiao Hospital in Chaoyang District, Beijing, the number of children and parents waiting at the entrance of the pediatric clinic began to increase. Shuangqiao Hospital is a second-class general hospital in Beijing, with 27 clinical departments. The pediatric setting has continued since the establishment of the hospital. Now there are 4 pediatricians, which can meet the basic medical needs of children around the hospital.

　　According to the monitoring data of the hospital, in September, 2023, the average daily outpatient volume of pediatrics in the hospital was 74. After entering October, the data curve increased obviously.

　　Although the number of recent visits has tripled or quadrupled compared with daily visits, the reporter saw here that even during the peak hours of children’s visits, the number of people waiting at the entrance of the pediatric clinic never exceeded 12, and children and parents were basically divided into two clinics within half an hour.

　　In order to cope with the peak of respiratory diseases in autumn and winter in 2023 and reduce the stay time of patients in the hospital, Shuangqiao Hospital optimized the treatment process.

　　In the registration process, the outpatient hall dynamically adjusts the number of manual registration windows, every morning at 8: 00 — At 5: 00 pm, the pediatric registration is not limited. After the registration, you can wait outside the clinic.

　　Outside the clinic, the medical staff who are asking about the illness of the children are full-time medical assistants specially set up for pediatric outpatient clinics in the hospital.

　　Before the child sees a doctor, the doctor can get the basic information of the child from the doctor’s assistant. After a preliminary judgment, the parents of the child can take the test items prescribed by the doctor and take the child for further examination. In this link, the hospital has also carried out dynamic optimization.

　　In order to reduce the time for patients to wait for results, the number of hospital inspection personnel is also dynamically adjusted with the demand.

　　In addition to optimizing the medical treatment process, in order to cope with the epidemic peak of respiratory diseases, many primary hospitals have increased the number of consultation places and opened weekend clinics. At present, Shuangqiao Hospital has implemented holiday-free clinics in the south and north hospitals, and both hospitals are equipped with the same inspection and testing items.

　　Relieve the pressure of hospital treatment through community health service center

　　In order to cope with the long waiting time in pediatrics and the overload of some children’s specialized hospitals, the National Health and Wellness Commission has previously instructed all localities to publicize the information of medical institutions that can provide pediatric diagnosis and treatment services in the region, so as to facilitate patients to seek medical treatment nearby. Not long ago, Chaoyang District published a list of primary medical and health institutions providing pediatric services in its jurisdiction on the Healthy Chaoyang WeChat official account. Cuigezhuang Community Health Service Center is one of them. Recently, there have been more calls to consult pediatrics.

　　Sun Li hasn’t been idle since she took the office phone with her colleagues at 8 am. Most of the calls these days are for consultation with pediatrics.

　　At the same time as the other party consulted, Sun Li also made a preliminary understanding and judgment on the situation of the child.

　　In order to cope with the peak of respiratory diseases in the winter of 2023, Cuigezhuang Community Health Service Center began to optimize the consultation process as early as October and implemented pediatric holiday-free outpatient service. In order to make children infected in the community find out and treat them early, medical staff also make full use of the family doctor signing system to answer questions for the surrounding residents in the WeChat group.

　　Residents and doctors in the WeChat group are familiar with each other. Usually, when residents have a headache, they will directly ask for medicine in the group. For a long time, the two sides have established close ties. In such a special period, this close relationship will play a huge role.

　　In the winter of 2023, although a variety of respiratory diseases were prevalent, no new pathogens appeared. For doctors, these respiratory diseases are common diseases that have to be dealt with every autumn and winter. There is little difference in the diagnosis and treatment of mild children, whether they go to a specialized hospital or stay in the community.

　　Set up a hospital outpatient department in the community to facilitate children to see a doctor

　　In order to facilitate people to see a doctor in primary medical institutions, some general hospitals have also set up hospital outpatient departments in the community, and doctors have been stationed for a long time.

　　Recently, Ren Yumei, a pediatrician in the First Affiliated Hospital of Henan University of Traditional Chinese Medicine, was sitting in the Provence Community Hospital in Zhengzhou.

　　Ren Yumei, Deputy Chief Physician of Pediatrics, First Affiliated Hospital of Henan University of Traditional Chinese Medicine:Our community clinics have 1-mdash all the year round; Two specialists are stationed here. At the same time, according to the high incidence season of respiratory infection this year, the hospital sent 5-mdash; Six senior doctors, basically every day we have 2-mdash; Three specialists and general practitioners are together to jointly maintain primary diagnosis and treatment. At present, the community can realize the synchronous diagnosis and treatment process with the hospital, and can do basic blood routine, mycoplasma and influenza, including pulmonary ultrasound imaging, which can completely help us complete the preliminary diagnosis and treatment of common epidemics, infectious diseases and respiratory diseases.

CCTV News:"Build an agricultural power with strong supply guarantee, strong scientific and technological equipment, strong management system, strong industrial resilience and strong competitiveness." On February 14th, the State Council held a series of press conferences on the theme of "Opening by Authoritative Departments" to introduce the key tasks of comprehensively promoting rural revitalization in 2023. Tang Renjian, director of the Office of the Central Leading Group for Rural Work and Minister of Agriculture and Rural Affairs, said in response to a question from a CCTV reporter at the General Station that it is necessary to have the common characteristics of a powerful agricultural country, follow the general laws of agricultural modernization, and reflect China’s characteristics based on the national conditions.

Tang Renjian believes that the connotation of an agricultural power is very rich, including both the development of productive forces and the transformation of production relations; It includes not only the all-round upgrading of agriculture, but also the all-round progress of rural areas and the all-round development of farmers. On the one hand, we must have the common characteristics of a strong agricultural country. Although foreign modern agricultural powers have different resource endowments and institutional environments, and the performance of agricultural powers is also different, they have some common characteristics.We should follow the general laws of agricultural modernization., find gaps, fill shortcomings, promote advantages, and buildStrong supply guarantee, strong scientific and technological equipment, strong management system, strong industrial toughness and strong competitiveness.A powerful agricultural country. On the other hand, we should reflect the characteristics of China based on the national conditions. It is the key to cultivate crops and feed them, to stress water and soil in agriculture, and to build an agricultural power according to the national conditions and agricultural conditions and to solve practical problems by relying on our own strength. our countryThe resource endowment with a large population and little land, the historical background of farming civilization, and the requirements of the times for harmonious coexistence between man and nature.These three aspects determine us.We must rely on our own strength to secure the rice bowl, rely on the two-tier management system to develop agriculture, develop ecological low-carbon agriculture, continue farming civilization, and solidly promote common prosperity.. These reflect us.The characteristics of China, the national conditions and agricultural conditions of China., toStrive to embark on a road of agricultural modernization with China characteristics.

Building a strong agricultural country is a long-term task and systematic project, so we should pay attention to ways and means and grasp the timing and efficiency. First, accurately understand the work layout of agriculture, countryside and farmers. Building a strong agricultural country is in the same strain as comprehensively promoting rural revitalization, with the same goal and unified process. At present, we should focus on promoting rural revitalization in an all-round way, do a good job in connecting the policy system with the work system, keep the focus unchanged, change the theme, adjust the channels, and maintain the continuity of work. The second is to strengthen overall planning. Pay close attention to the study and formulation of plans to accelerate the construction of a strong agricultural country, and make overall planning and systematic arrangements.Connecting with the existing planning, we can’t make another set completely., clear road map construction drawing, solid and powerful, both convergence and innovation, do a good job in such a plan. The third is to highlight the actual results. Focus on solving the problemThe development of local agriculture and rural areas is the most urgent, and farmers have the strongest reaction.Practical problems ofIn fact, it falls into one specific livelihood fact, even including some.Key trivial matterIn fact, it has been a long time to make the peasants feel a real sense of gain, happiness and security in the process of rural revitalization.

In recent years, cycling has increasingly become the endorsement of people’s pursuit of freedom and health. However, these pursuits often conflict with the complexity of the real environment.

On August 11 this year, a father in Hebei rode with his child. After the child fell, he was crushed by the opposite vehicle and died unfortunately. On September 15th, a mainland woman unfortunately lost control and fell while riding on Lantau Island in Hong Kong, and was crushed to death by an oncoming tourist bus.

These accidents reflect the potential safety hazards faced by cyclists when they enjoy sports and explore the scenery, and also make us think deeply, how can we find a balance between freedom and safety in cycling?

Behind the craze, cycling accidents continue to increase.

The concept of cycling is no stranger. Different from the bicycle culture full of pragmatism in China in 1970s and 1980s,Nowadays, cycling has developed into a highly respected sport.

According to the "Survey Bulletin of National Fitness Activities in 2020" issued by the National Physical Fitness Monitoring Center, cycling is one of the main sports for adults in China, and the proportion of women is higher.

The rise of cycling groups and cycling activities makes cycling add social attributes to sports. Yaya, who has participated in cycling activities for many times, told us: "Riding has made me make many different friends, and I enjoy this free state." Health, relaxation, pursuit of freedom, social interaction … Riding itself has been given more meaning, and it has also become a personalized choice for people to pursue self-expression at present.

With more and more people participating in cycling, especially in complex scenes such as cities and traffic roads, the number of cycling accidents is also increasing.According to statistics, in recent years, the incidence of bicycle traffic accidents in China has been increasing, and the number of injuries and deaths has also been rising.

The recent cycling accidents have also pushed cycling to the forefront and exposed its potential safety risks.

Multiple factors are superimposed, and the hidden dangers of riding safety are highlighted.

Behind the frequent cycling accidents, there are many factors, such as environment, man-made and equipment.

In the feedback about riding risks from the People’s Daily Online leaders’ message board,Inappropriate road conditions and the lack of dedicated cycling lanes are important factors affecting riding safety.Dahai is the founder of the bicycle organization in China Renmin University. In his view, the road conditions have a great influence on riding safety. The smooth roads in some cities are one of the reasons for the rising cycling fever. In other cities, there are many bumps in the downtown roads, which are easy to cause riding safety hazards and make people flinch.

The smoothness, width and visibility of the road surface all play an important role in riding safety, but some roads lack special bicycle lanes, so cyclists usually need to share narrow roads with motor vehicles, which increases the risk of collision. The sea also tells us that electric bicycles, as a common means of transportation, are numerous, and their irregular driving has caused great safety pressure to cyclists. At present, the domestic electric vehicle management is relatively loose, which makes this problem more prominent.

In addition to the imperfect cycling infrastructure, there are often contradictions between cyclists and other road users. We coded and analyzed 988 comments under the four most typical posts on the theme of "Riding to Quit" in Xiaohongshu, looking for a spit point. In the comments, the opinion on "too fast" is the biggest. Others mostly focus on cyclists’ behaviors that do not obey traffic rules, such as occupying roads, running lights, retrograde, etc. Some people are worried about cyclists’ lack of professional knowledge and safety equipment.

For mature cycling groups, experience, equipment and professional knowledge seem to be no longer a problem. There are many cyclists in the G318 Sichuan-Tibet line, including many large and small motorcades. Xiaojin, who once rode the line, said that this kind of cycling group usually has experienced riders as the "head car" and "tail car". The "head car" will observe the situation ahead in advance and give tips in the way agreed by the team when encountering special circumstances such as uneven road surface or about to turn. They are usually well-equipped, such as preparing lighting facilities to deal with the situation of entering dark sections such as tunnels. The leadership of experienced people, full preparation and orderly management all add a safety guarantee to cycling.

However, the popularity of modern high-performance bicycles makes many cyclists have a higher pursuit of speed. The control ability of cyclists in high-speed state is weakened, and the reaction time of judging and dealing with emergencies is greatly shortened. More importantly, riding accidents caused by high speed have greater impact and more fatal damage to cyclists.

When talking about the riding accident in Hebei, Xiaojin said: "The reaction speed and strength of children are still different from those of adults. His father may treat him as an adult."

From the unfinished construction roads in Hebei to the winding mountain roads in Hong Kong,When cycling becomes a contest between high-speed sports and complex road conditions, the imbalance of safety becomes particularly obvious.

How to ensure riding safety within the rules?

In practice,Some bicycles can easily ride at a speed of more than 30 kilometers per hour, and the speed can even reach 50 kilometers per hour when going downhill.[1]. This has far exceeded China’s regulations that the maximum speed of electric bicycles in non-motor vehicle lanes should not exceed 15 kilometers per hour.

Compared with electric bicycles, China’s "Regulations on the Implementation of Road Traffic Safety Law"(hereinafter referred to as the regulations)The regulations on cycling are relatively broad, and there is no clear regulation on the speed of cycling and whether it is necessary to wear a helmet. However, the regulations stipulate the minimum age for cycling, the lanes that can be driven and how to borrow roads in an orderly manner. At the same time, there are clear prohibitions on traction, climbing and parallel chasing.

At the same time, some cities in China also put forward management measures for racing cycling. On July 25, 2024, the Beijing Municipal Public Security Traffic Management Bureau issued a message to strictly investigate the "racing" behavior of cyclists on urban roads. Since August, 2023 illegal behaviors of non-motor vehicles chasing and racing have been punished on the spot.[2]. In March, Chengdu issued the Measures for the Management of Greenway Riding in Chengdu’s Ecological Zone around the City.(Provisional)",clearly stipulates the" greenway speed limit ",and requires that the warning sign of safe riding speed should be set according to the principle that the maximum speed of high-risk sections and crowded areas is not more than 15km/h, and the maximum speed of other sections is not more than 20 km/h.[3].

In terms of helmet wearing, some foreign cities have legislative provisions. For example, at present, 22 states in the United States and Washington, D.C. have legislation on wearing helmets when riding bicycles, mostly to protect the safety of young cyclists.[4]. The laws of Sydney and New South Wales in Australia require all cyclists to wear helmets that meet the standards, and wear and fasten them firmly to ensure the safety of cyclists.[5].

Abiding by the rules and ensuring safety are the principles that everyone should jointly safeguard. Failure to take appropriate riding methods should be disciplined and reminded, and even worse, bear relevant responsibilities.At present, some uncivilized and even illegal cases have brought negative effects to normal cycling exercise groups, leading to the public’s stereotype and stigma of cycling groups. Within the scope of the rules, cyclists should not be looked at and questioned as a separate group.

Whether it is legislation, infrastructure or public awareness, cycling needs to be better embraced and accepted.But at the personal level, civilized riding is still the premise of ensuring safety, and it is also the responsibility of every rider to himself and others.

To this end, we have also compiled a cycling tip, hoping that every cyclist can always enjoy peace while pursuing freedom.

Note: At the request of the interviewee, Yaya, Dahai and Xiaojin are all pseudonyms.

References:

[1] Beijing News. (2024). Racing groups rush lights and ride friends, please take it easy and get acquainted with the city experience officer. https://www.bjnews.com.cn/detail/1724307395129793.html.

[2] Shangguan News. (2024). Beijing strictly investigates cycling racing, and public roads can’t tolerate "violent riding groups" rampaging. https://export.sheobserver.com/baijiahao/html/790329.html.

[3] The Paper. (2024) The frequent accidents of urban cycling groups have attracted attention, and police in many places have rectified the chaos of "violent riding". https://m.thepaper.cn/newsdetail _ forward _ 28421377

[4]IIHS HLDI.(2024).Bicycle helmet use laws.https://www.iihs.org/topics/pedestrians-and-bicyclists/bicycle-helmet-use-laws-table

[5]NSW Government.(2024).Wearing the right cycling safety gear.https://www.nsw.gov.au/driving-boating-and-transport/roads-safety-and-rules/bicycle-safety-and-rules/wearing-right-gear

　　CCTV News:A few days ago, the Publicity and Education Center of the Ministry of Environmental Protection and the Beijing Environmental Protection Publicity Center jointly exposed the "Top Ten Smog Rumors of 2016". Let’s see which rumors once made you believe!

　　Rumor: Beijing smog in macro lens?

　　A video of Beijing smog shot with a 4000 lumen light macro lens is shocking. In the video, some small particles are floating around, which is really scary to watch. Many netizens have said that masks that have been suspected before must be worn this time, and some netizens commented that "this kind of air will kill people." The video has been forwarded by nearly ten thousand people.

　　truth Fog droplets and fine particles that form smog are invisible to the naked eye, so it is necessary to use microscope instruments. What the video sees is just dust.

　　Proverbs 2 Automobile exhaust is 10 times cleaner than air, and the contribution of motor vehicles to smog is not so great.

　　In a video from a car website, on a heavily polluted day, a person wearing a gas mask extended the air quality detector to the exhaust pipe of a car, and the reading of PM2.5 dropped from nearly 500 to 48. It is concluded that automobile exhaust is 10 times cleaner than the air in foggy days.

　　truth Most of the contribution of automobile exhaust to pm2.5 is indirectly generated. The exhaust contains substances such as nitrogen oxides and volatile organic compounds (VOCs), which are gases and will not be reflected in the air quality tester for measuring PM2.5.. However, these gases are both "raw materials" and "catalysts" for PM2.5 production. Among the local pollution sources in Beijing, the contribution of pollutants emitted by motor vehicles to PM2.5 is 31.1%, which accounts for 40% in non-heating season. Organic matters, nitrates, sulfates and ammonium salts generated by secondary conversion account for 70% of PM2.5.

　　Proverbs 3: A red warning was issued because of the presence of ammonium sulfate in the smog?

　　In mid-December 2016, Huanghuai and other places in North China suffered from a wide range of smog weather. Under the shadow of persistent smog, some rumors began to breed on the Internet. A message widely circulated on the Internet said, "Internally, this smog mainly contains ammonium sulfate, which was not the level of red warning, but it only reached this level because of the existence of ammonium sulfate. Remind the children not to go out. The purifier at home is turned on for a long time. Drink more water. It turned out that ammonium sulfate exceeded the standard in London, and many people died without protection. "

△ On December 16, 2016, Beijing launched a red warning of heavy pollution.

　　truth According to the "Emergency Plan for Heavy Air Pollution in Beijing", the red warning is to predict serious pollution for four consecutive days or more, of which two days will reach serious pollution; Or the single-day air quality index (AQI) reaches 500. Ammonium sulfate is not the standard for issuing a red warning.

　　The paper "From London Fog to China Haze: Persistent Sulfate Formation from London Fog to Chinese Haze" published in the Proceedings of the National Academy of Sciences in the United States in late November pointed out that in China, agricultural nitrogen fertilizer and industrial emissions produce a large amount of ammonia pollution, and alkaline ammonia promotes the reaction process of sulfur dioxide and nitrogen oxides, forming a large amount of ammonium sulfate, but also neutralizes the acidic environment, making China smog neutral in pH value.

　　Although the neutral pH of smog in China doesn’t mean that smog in China is harmless, it doesn’t have as strong acute toxicity as acidic fog in London. The acute toxicity of ammonium sulfate is not great, and the deadly culprit of London fog is high concentration of sulfur dioxide.

　　Rumor has it that the four wind power stations and shelterbelts block the smog caused by strong winds?

　　Some people think that a large number of wind power stations have been built in Inner Mongolia to steal the strong wind in Beijing, and the three-north shelterbelt attenuates the wind in the north, resulting in smog that cannot be blown away.

　　truth The wind can recover when it hits an obstacle, and local wind power generation or local shelter forest will not affect the downstream wind power far away. The fundamental reason for the formation of fog and haze is that the ground pollutants hit the static condition of the atmosphere. At present, no scientific research shows that there is a causal relationship between wind farms or shelterbelts and the formation of smog.

　　Proverbs five smog is because of "nuclear pollution".

　　It is said that large-scale uranium and coal resources have been found underground in Erdos, Inner Mongolia. Through burning, uranium in coal enters the air, which is the reason for the large-scale smog in China at present.

　　truth The main influencing factor of smog is meteorological conditions. Uranium itself is a very heavy element, which is not easy to be oxidized and will not become dust; Moreover, the power plant will carry out dust removal, desulfurization and denitrification on the emissions, even if they really exist, they should also be left in the combustion residue, and the amount entering the air is very small.

　　Rumor 6 "coal to gas" aggravates air pollution in Beijing?

　　An article entitled "Smoke emission from natural gas boilers is an important reason for aggravating the haze weather in Beijing" said that smoke emission from natural gas boilers is the main source of "rich water vapor" in Beijing and an "accomplice" to aggravate the haze air. The article says that the development of natural gas in Beijing is a double-edged sword, which has the clean energy side, the negative influence of water vapor emission and the pollution of nitrogen oxides.

　　truth Wang Zifa, a researcher at the Institute of Atmospheric Physics, Chinese Academy of Sciences, said that according to the current natural gas consumption in China, the gaseous water produced by burning natural gas is about 300 million tons every year. If all of it is converted into liquid water (in fact, it is impossible to convert all of it into liquid water), it will be spread evenly in the eastern part of the country where the population is concentrated (estimated area is about 3.6 million square kilometers), and the thickness of liquid water is less than 0.1 mm/year, accounting for only one hundred thousand of the precipitable water in the atmosphere, with little impact. Therefore, "changing coal to gas" will not significantly increase the humidity in Beijing’s atmosphere, and it is not the main source of "rich water vapor" in Beijing.

　　Professor Feng Yinchang of Nankai University said that no matter burning coal, gas or oil, nitrogen oxides will be emitted. Whether "changing coal to gas" will lead to the increase of nitrogen oxides mainly depends on the combustion mode and quality of coal before changing gas and the combustion technology adopted after changing gas. If low-nitrogen combustion technology is adopted, the emission of nitrogen oxides will be reduced. Denitrification started later than desulfurization in China, and the concentration of nitrogen oxides in the atmospheric environment has not decreased as significantly as that of sulfur dioxide in recent years. The increase of nitrogen oxide concentration may cause secondary pollution, but it is controllable. Moreover, the causes and mechanism of pollution are very complicated. It is not scientific to say that the pollution of particulate matter is still serious because the concentration of nitrogen oxides has not decreased significantly.

　　Proverbs 7: Beijing’s air quality is gradually deteriorating?

　　Some people think that the smog is frequent now, and the air quality in Beijing is not improving but deteriorating.

△ On December 30, 2016, Beijing was shrouded in smog.

　　truth According to the monitoring data of the Ministry of Environmental Protection, as of December 27, 2016, the average concentration of PM2.5 in Beijing in 2016 was 72 μ g/m3, down 10.0% year-on-year (down 8 μ g/m3) and down 20% compared with 2013 (down 18 μ g/m3). The assessment report "The Course of Air Pollution Control in Beijing: 1998-2013" issued by the United Nations Environment Programme in 2016 shows that from 1998 to 2013, the average annual concentrations of sulfur dioxide (SO2), nitrogen dioxide (NO2) and inhalable particulate matter (PM10) in Beijing decreased significantly by 78%, 24% and 43% respectively, and the air quality in Beijing has been improved in the past 15 years. In addition, the monitoring data of international organizations such as NASA in the United States also support the trend of continuous improvement of air quality in Beijing.

　　Proverbs 8 smog can only wait for the wind, and emergency measures for heavy pollution are useless.

　　There is a view that the smog in Beijing can only wait for the wind, and the measures that took so much effort to implement during the period of heavy pollution did not play a role in driving away the smog.

△ On December 23, 2016, Beijing ushered in the blue sky after smog.

　　truth The function of heavy pollution emergency is to reduce pollutant discharge and pollutant accumulation as much as possible through certain emergency emission reduction measures, so as to protect public health to the maximum extent. According to professional calculations, during the Red Police this year, PM2.5 was reduced by about 23% and other pollutants were reduced by about 30% on average compared with no measures. Haze is caused by pollutants discharged by human production and life exceeding the environmental capacity under certain meteorological conditions. Only by reducing the emission intensity of pollutants through corresponding control measures can the air pollution problem be fundamentally solved, which requires a long-term process.

　　Proverb 9 Beijing is seriously polluted by smog, and the air contains antibiotic-resistant bacteria.

　　On November 23, 2016, four scholars from the Research Center for Antibiotic Resistance of the University of Gothenburg in Sweden mentioned in their research that "the antibiotic resistance gene was detected from the smog in Beijing". Subsequently, some domestic WeChat WeChat official account published the title "Breathing Pain! Drug-resistant bacteria are found in smog in Beijing and other places, and more than 60 kinds of drug-resistant bacteria in smog in Beijing will lead to drug failure. On November 24, 2016, some media released a news titled "Drug-resistant bacteria were found in Beijing smog, and" the last antibiotic of mankind "could do nothing about it". The news was reprinted and commented by a large number of media and self-media on the 25th.

　　truth The Beijing Municipal Health Planning Commission responded that the drug resistance and pathogenicity of bacteria are completely different concepts, and the increase of drug resistance does not mean the enhancement of pathogenicity. Many experts at home and abroad said that bacterial drug resistance has nothing to do with smog, smog does not produce drug-resistant genes, and smog has no necessary causal relationship with drug-resistant bacteria. The acquisition of bacterial drug resistance is caused by evolutionary selection and induced selection of antibiotics, not by smog. The hazard factors in smog are mainly chemical pollutants, which have adverse health effects on respiratory system and cardiovascular system, and the health risks caused by microorganisms are very small.

　　Proverbs 10 smog blocks alveoli? The incidence of lung cancer in Beijing is much higher than that in the whole country, showing a younger trend, and air pollution is the culprit.

　　There is no doubt that smog affects health, but some opinions circulating on the Internet are varied: the incidence of lung cancer in Beijing is much higher than that in the whole country, showing a younger trend, and air pollution is the culprit? Can 80 PM2.5 particles block an alveolus? Will smog make fresh lungs turn black for six days? Smoking smog for a day may lead to hemiplegia? Can smog lead to infertility? Smog makes people lose their lives for five and a half years?

　　truth In response to these questions, Academician Zhong Nanshan once said that "many data about smog carcinogenesis are taken out of context, exaggerated or tampered with".

　　In fact, from 2003 to 2012, excluding the aging factor, the average annual growth rate of lung cancer in Beijing was 1.2%. In 2011, the age-standardized incidence rate of lung cancer in Beijing was 23.53/100,000, while the latest standardized incidence rate of lung cancer in China was 25.34/100,000. It can be seen that the incidence rate of lung cancer in Beijing was slightly lower than the national average. The median age of lung cancer in Beijing in 2011 was 71 years old, which increased by 2 years compared with the median age of 69 years in 2002. It can be seen that the incidence of lung cancer in Beijing is not younger. Others, such as "80 PM2.5 particles can block an alveoli?" Will smog make fresh lungs turn black for six days? Smoking smog for a day may lead to hemiplegia? Can smog lead to infertility? Smog makes people lose their lives for five and a half years? " Such rumors, without scientific basis, have been confirmed as rumors by relevant authorities.

　　NASA

　　Pluto, once "Laojiu", has now been "reduced" to a dwarf planet.

　　Our reporter Gao Bo

　　Not long ago, two foreign astronomers put forward a bold idea: the ninth planet in the solar system, which is "hidden from time to time", is likely to be an original black hole.

　　There is a black hole in the solar system that controls distant celestial bodies? Some experts said that this is an interesting hypothesis, but it is difficult to confirm or falsify with the current observation ability.

　　The vacant throne, there are new contenders.

　　More than a decade ago, who was the ninth planet was clearly written in the textbook. In 1930, clyde tombaugh discovered PLUTO, equating it with Uranus and Neptune, giving it the magnificent Greek name "Prouteau", and the nine planets in the solar system became a kind of common sense knowledge.

　　However, scientists later realized that Pluto seems to be "far from enough to see" in the outer space of the solar system. Since 1992, some distant ice-stone structures have been discovered one after another, and their volume is similar to Pluto. In 2005, it was discovered that the planet Eris was 27% more massive than Pluto! Pluto can be counted as the ninth largest, and it’s unreasonable that Venus doesn’t rank tenth.

　　Astronomers made a decisive decision, and the 26th International Astronomical Union held in August, 2006 passed a resolution: Pluto was classified as a dwarf planet and removed from the nine planets in the solar system. Prouteau abdicated tragically and became an asteroid 134340.

　　But the throne of the ninth planet is not so easy to cancel. In recent five years, some new discoveries have led people to speculate that there may be a real "P9" (the ninth largest planet) in the solar system.

　　On September 24th, another newcomer joined the battle for the throne — — ArXiv.org posted a paper, and Jakub Scholtz of Durham University in Britain and James Unwin of the University of Illinois in the United States put forward a bold idea: the ninth planet in the solar system may be an original black hole.

　　Strange orbit, pointing to the hidden "P9"

　　Around 2014, astronomers discovered some celestial bodies in the Kuiper Belt (the area near the ecliptic plane outside Neptune’s orbit). When the orbit is far from the sun, it can reach hundreds of astronomical units (one astronomical unit is the distance between the sun and the earth). At first, this was explained as the gravitational scattering effect of Neptune. But soon, the conjecture of the new ninth planet was put forward.

　　In 2016, michael brown of California Institute of Technology and his colleagues discovered that six celestial bodies in the Kuiper Belt have strange orbits, and their perihelions all point in the same direction. It’s like six clocks that turn at different speeds, but the hands all point in the same direction. If Neptune was behind the scenes, their directions would have been scattered and not so concentrated.

　　Moreover, when the six celestial bodies are closest to the sun, the distance is more than 40 astronomical units, and the Neptune hypothesis is not easy to explain.

　　Michael brown and his colleagues calculated that the probability of "big guys pointing to accidental coincidence" is 0.007%— — It is more realistic to believe that there is a "big guy who has not yet appeared".

　　Zhou Liyong, an astronomer and professor at Nanjing University, said in an interview with Science and Technology Daily that many people opposed the existence of "P9" at first. With the continuous discovery in recent years, the statistical significance of confirming the existence of the ninth largest planet has gradually increased.

　　Although "P9" has not been observed, some people have speculated its parameters through computer simulation: it is 200 to 800 astronomical units away from the sun, and its mass is 5-mdash that of the earth; Ten times, it takes 30,000 years to circle the sun … …

　　It is not necessarily the earth that wanders, but it may also be a black hole.

　　Astronomers used to believe that the possibility of a new planet outside Neptune is very small, because the material in this area is too thin, and it takes too long to grow a big planet. But what if the solar system "plundered" a ready-made planet from the vast universe? This possibility is worth considering.

　　"In fact, there may be many wandering planets in the universe, just like in the movie ‘ Wandering earth ’ Same. " Xie Jiwei, an astronomer who studies extrasolar planets and an associate professor at Nanjing University, told the Science and Technology Daily reporter that one way to find extrasolar planets is called gravitational microlensing method, which is to capture the weak deformation of images — — The light is distorted by the mass of a celestial body along the way to find clues about the existence of exoplanets. In this way, we have observed many "clues", indicating that there are many "tramps" who are unorganized and undisciplined in the unknown darkness.

　　In the suspected area of "P9", the gravitational anomaly was observed in the optical gravitational lens experiment (OGLE). At least six gravitational microlensing events indicate the gravity anomaly in this area, suggesting the existence of a free-floating celestial body with a mass range of 5-mdash; Between 15 earth masses. The conjecture of "P9" is therefore encouraged.

　　The new paper by Schultz and Unwin speculates that this celestial body may not be a rogue planets, but a wandering black hole. It was drawn into the group by the solar system, which disturbed the orbit of the outer celestial bodies.

　　Generally speaking, black holes observed by astronomers are gathered after the death and collapse of stars. The original black hole that exists in the theoretical assumption is another matter. Hawking made a great contribution to this concept: it was a "cultural relic" that came into being shortly after BIGBANG.

　　The universe before the Big Bang was called the primordial universe by astronomers. The explosion of the original universe was uneven, and the energy density in the local space was too high. Without collapsing, it was compressed into points with infinite mass and surrounding black holes. This kind of black hole varies in size, and it may be as small as a particle. The general primary black hole is similar in mass to the common asteroids in the solar system.

　　These black holes then drift around the universe. Some are dissipated by Hawking radiation and melted like ice; Others absorb substances and grow, and survive to this day.

　　Schultz and Unwin pointed out that the abnormal orbits of celestial bodies outside Neptune, as well as some gravitational events, can be explained by the original black hole whose mass is several times that of the earth; An original black hole may be captured by the solar system and become the ninth planet; They proved that the possibility of this capture is worth considering.

　　Strict assumptions, there are still many voices of opposition.

　　"The idea of this paper is still very rigorous and standardized, not a guess." Xie Jiwei said, "but the author also said that this is only a possibility. Introducing the concept of black hole may be interesting and strange to everyone. But the next step is still impossible. Moreover, whether there is the ninth largest planet is still a problem. "

　　Schultz and Unwin said that if "P9" is an original black hole, it may pass through the peripheral "halo" — — The positive and negative electrons in the outer layer of a black hole annihilate the light to determine its existence. However, a planetary scientist told the Science and Technology Daily reporter that such observation is difficult to achieve because the black hole is small and uncertain in its location.

　　"I personally don’t like the idea of the original black hole." An expert engaged in planetary research told the Science and Technology Daily reporter, "It feels almost mystical — — Can explain some phenomena, but basically never see it. "

　　"The discoverer of Kuiper objects, David Jewitt, didn’t even believe in ‘ The ninth planet ’ The existence of. " The expert said that David Jewett said in a TV interview that he didn’t think "P9" existed. He believes that the black hole hypothesis reveals that scientists are eager to make "major discoveries". But this theory is far from the stage of verification.

　　An important reason for different opinions is that it is still difficult to observe celestial bodies outside Neptune at the current level of human technology. Although humans have observed thousands of extrasolar planets.

　　"I don’t know the true face of Lushan Mountain, but I am only in this mountain." Xie Jiwei said, "Observing exoplanets basically infers the situation of planets indirectly by observing the Ling Xing effect or Doppler effect of star spectra. The planets in the solar system can be directly observed. The brightness of a planet is inversely proportional to its distance from the sun. Celestial bodies that are too far away will receive weak light and reflect weaker light. "

　　The periphery is so vast and the celestial bodies are so dim. Beyond hundreds of astronomical units, it is still unknown.

　　Xie Jiwei said: "Many celestial bodies on the edge of the solar system were seen through the Hubble telescope; After the Weber telescope works, our observation level will improve a little. "