揭阳脊柱穿刺模型(云南高仿真超声、X线引导经皮穿刺肾镜训练模型) (今日更新中)

The four-day Beijing air quality exercise held earlier in the month was met with mixed reaction.Diverse opinions were expressed by private car owners and public transport users.During the four days, cars bearing odd and even license plates were allowed on the roads on alternate days to see what effect this would have on the reduction of air pollution.According to a survey by Beijing Youth Daily, 61.9 percent of car owners opposed the practice in a long run while 78.2 percent of public transport users lauded it. The survey covered 3,000 residents.On the positive side, the exercise between August 17 and 20, showed a reduction in haze and smoother traffic flow.On the negative side, it has sparked further debate on the number of vehicles in the capital. About 1,000 new cars are registered every day in the city.Car owners argued that smoother traffic comes at the expense of individuals' convenience."Does being a car owner mean you have limited rights? That would be cruel and inhuman," Wang Hongsheng, head of the Volkswagen Polo club in Beijing, said.Fifty-seven percent of car owners shared his opinion.Among non-drivers, 21.9 percent did not think the even-odd plate exercise was a reasonable, scientific way to gauge air quality."It is an arbitrary way of stripping car owners of their rights. They pay for the convenience," a respondent said.Apart from the purchase price, the cost of owning a car in Beijing ranges from 10,000 yuan to 30,000 yuan (,300 to ,900) a year, he said.The survey also showed 36 percent of car owners were in favor of "public transport if managed well"."People are fed up with the poor condition of buses, and the metro where people are packed like sardines," another said.On options to improve traffic conditions, 49.9 percent said efficiency and lowering public transport fares should top the government's agenda instead of restricting car-ownership.Twenty-six percent of respondents said more roads and bridges should be built to reduce congestion, 14.5 percent were in favor of more flexible parking fees in relation to localities, and 9.5 percent said the use of bicycles, and walking should be promoted.

BEIJING - China imported 139,900 sedans in 2007, up 25.13 percent over the previous year, with the largest share of 46 percent, or 63,800 units, coming from Germany, China Customs figures revealed.The sedan imports worth 5.01 billion US dollars, up 25.41 percent from the previous year, took up 45 percent of China's total automobile imports which has slightly overshot the previous year's total to stand around 310,889 units.China Trading Center for Automobile Import predicted late January that tariff reduction since July 1 had given a stimulus to China's consumption of overseas made automobiles, which could reach 300,000 in 2007.China customs figures showed about 79 percent of the imports were vehicles with an engine size of or larger than 2.5 liters.Japan exported 29,700 sedans to China, the second largest total, while the United States ranked third with 18,000 units.China's sedan exports, by contrast, more than doubled year-on-year to 188,600 units in 2007.Chery, the flag-bearer of Chinese brands, saw a 132-percent surge in exports in 2007, to 119,800 units. The carmaker, which has accelerated its expansion overseas in recent years, expected to export 180,000 units this year.Chang'an Automotive Group, China's fourth largest automaker, sold more than 40,000 cars overseas last year, against 21,700 in 2006.China, the world's third largest vehicle producer, after Japan and United States, found its auto output grow 22.9 percent to 9.04 million units last year, according to figures with the National Development and Reform Commission (NDRC), the country's top economic planner.The NDRC deputy economic performance department director Zhu Hongren said, since quantity was not a problem anymore, auto producers should increase their focus on quality.In 2006, China overtook Japan to become the world's second largest car market after the United States, with sales of 7.2 million units, up 25.13 percent year-on-year.Compared with their international counterparts, China's auto makers are still small in terms of production scale and behind in technology. In addition, the country's auto boom has created growing problems, such as increasing traffic jams and pollution.

BEIJING -- China may entirely switch to non-food materials such as cassva, sweet potato, sorgo and cellulose in producing ethanol fuel as a substitute for petroleum, said a government official. The country would approve no projects designed to produce ethanol fuel with food from now on, an official of the National Development and Reform Commission (NDRC) told a seminar on China's fuel ethanol development held in Beijing on Saturday. "Food-based ethanol fuel will not be the direction for China," said Xu Dingming, vice director of the Office of the National Energy Leading Group, who was also at the seminar. China has been trying to avoid occupation of arable land, consumption of large amount of grain and damages to the environment in developing the renewable energies. The current four enterprises engaged in producing corn-based ethanol would be asked to switch to non-food materials gradually, according to the NDRC official who declined to be named. The four enterprises in Jilin, Heilongjiang, Henan and Anhui have a combined production capacity of 1.02 million tons of corn-based ethanol per year. The country has become a big producer and consumer of ethanol fuel in the world after the United States, Brazil and European Union, according to the NDRC official. China Oil and Food Corporation (COFCO), the country's largest oil and food importer and exporter, would focus on sorgo in the production of non-food-based ethanol fuel, said Yu Xubo, president of COFCO at the seminar. COFCO, which owns the Heilongjiang enterprise and has a twenty-percent stake in the Anhui enterprise, aims to produce five million tons of ethanol fuel based on sorgo in the near future. COFCO is leading the way in developing cellulosic ethanol fuel under a cooperation agreement with Denmark-based Novozymes, which leads the world in researches into the key enzymes needed in large-scale production of cellulosic ethanol. The current cost for producing ethanol fuel from stalks of corn, which are discarded by farmers, is still too high. Novozymes is working on the commercialization of cellulosic ethanol both in the United States and China. "We are optimistic about China's prospect of making it work ahead of the US, as the cost of collecting the stalks of corn are much cheaper in China," said Steen Riisgaard, president and CEO of Novozymes. There is much opposition both in China and in the world to corn-based ethanol fuel, which is believed will lead to higher corn price.

CHENGDU: Halfway up the Longquan Mountain sits a tiny village where Fu Qing used to live with her parents.Each morning, the young girl would get up at 6:30 am and after breakfast, walk for 40 minutes along a winding mountain path to the nearest primary school.In winter, she would often become anxious toward the end of the school day, concerned she might not make it home before sunset.But these days, the 14-year-old no longer has to worry about long lonely walks on dark mountain paths.Along with 3,164 other children from Longquan Mountain, Fu now attends a boarding school in Chengdu's Longquanyi district. Exempt from tuition and lodging fees, each student also receives 130 yuan a month for meals and bus fares, and two new uniforms each year.The youngsters are all part of the Golden Phoenix Project, a pilot program that aims to provide better schooling for children from Chengdu's rural areas. Authorities in the Sichuan capital hope it will also better prepare them for urban life.Longquanyi covers an area of about 500 sq km, two-fifths of which is mountainous. About 60,000 people live in the mountains, most of them farmers.Fu's former primary school was in Chadian, a village located at the very heart of Longquan Mountain. It had just six classrooms and on rainy days, the roof leaked.Once the rain had stopped the students would have to repaint the blackboards with ink, which would get washed off in the downpour. And at the start of every semester, Fu and her classmates had to carry their desks and chairs to school, because there was no money to buy new ones.In the evening, Fu would make dinner for herself and her mother, who spent her days growing beans and fruit on the mountain. Fu's father worked at a construction site in Chengdu.The local government launched the Golden Phoenix Project in 2005 in a bid to bring youngsters like Fu down from the mountain and into middle schools in the towns.As well as providing them with financial support, the authorities allocated 160 million yuan for the construction of a boarding school, which, on its completion next year, will be able to accommodate 5,000 students.Fu is one of 1,840 students from mountain villages currently living and studying at the almost-complete school, which boasts 121 teachers, including 20 who act in loco parentis.And rather than having to repaint the blackboard after each downpour, Fu now enjoys computer studies and physical education classes when she gets to run on the rubberized athletics track, something she had never even seen before.The new school is helping provide Fu not only with an education, but also a real insight into urban living.Since she has been there, she has learned how to use a flush toilet, for example, and understand traffic lights.Her biggest dream is to finish her education and become an office worker in the city.Thanks to the Golden Phoenix Project, all middle-school-aged children from Longquanyi's mountainous areas attend boarding schools in nearby towns.The district government is now planning to spend a further 40 million yuan to establish similar schools for primary students.Zhou Jiping, head of Chengdu's education bureau, said: "The Golden Phoenix Project is just one of the efforts being made here to ensure the balanced development of urban and rural education."Children studying under the project often perform better than their peers from urban areas, he said.Over the past four years, local authorities have spent 1 billion yuan on the construction and renovation of 400 schools in rural areas. Rural students are exempt from tuition fees for compulsory education and from next year, they will also be provided with free textbooks."By doing so, we hope to give all kids in Chengdu a fair and equal start," Zhou said.

来源：资阳报