甘肃动脉与静脉解剖放大(湘潭筛骨模型) (今日更新中)

BEIJING, Feb. 8 (Xinhua) -- China plans to sell 600 billion yuan (91 billion U.S. dollars) worth of welfare lotteries from 2011 to 2015, up 73.6 percent from the past five years, an official from the Welfare Lottery Distribution and Management Center (WLDMC) has said.The sales of welfare lotteries posted an annual increase of 18.7 percent over the past five years, from 41.2 billion yuan in 2006 to 96.8 billion in 2010, the official said.The sales totalled 345.53 billion yuan from 2006 to 2010.The center believed that there would be broad prospect for welfare lottery sales with the increase of people's income and the development of philanthropy.According to China's Regulations on Lottery Management, money raised through lotteries is divided into three parts: the jackpot, lottery management fees, and lottery public funds.The government-run lottery raised a total of 30 billion yuan for public welfare funds in 2010, according to the WLDMC statistics.The WLDMC is administered by the Ministry of Civil Affairs, which was authorized by the State Council, or China's Cabinet, to raise welfare funds through lottery sales in 1987.

LOS ANGELES, May 5 (Xinhua) -- NASA has selected three planetary missions from which it will pick one potential mission to look at Mars' interior for the first time, NASA's Jet Propulsion Laboratory (JPL) announced on Thursday.The Mars mission, to be launched in 2016, would be led by JPL, according to the announcement.The other two missions would study an extraterrestrial sea on one of Saturn's moons; or study in unprecedented detail the surface of a comet's nucleus, said JPL in Pasadena, Los Angeles.The selected investigations could reveal much about the formation of our solar system and its dynamic processes, JPL said.Each mission will receive three million dollars to conduct its mission's concept phase or preliminary design studies and analyses, JPL said in a news release.After another detailed review in 2012 of the concept studies, NASA will select one to continue development efforts leading up to launch. The selected mission will be cost-capped at 425 million dollars, not including launch vehicle funding, according to JPL.NASA's Discovery Program requested proposals for spaceflight investigations in June 2010. A panel of NASA and other scientists and engineers reviewed 28 submissions."NASA continues to do extraordinary science that is re-writing textbooks," said NASA Administrator Charles Bolden. "Missions like these hold great promise to vastly increase our knowledge, extend our reach into the solar system and inspire future generations of explorers."

BEIJING, Feb. 27 (Xinhua) -- Chinese Premier Wen Jiabao said during an online chat with netizens here Sunday that the government is striving to ensure that the people live a comfortable life with security and confidence in the period of 2011-2015.China's development blueprint for the coming five years will place high emphasis on the efforts to improve the people's livelihood, Wen said.To enhance the people's living standards is "our work's starting point as well as the final aim," he said.Greater efforts will be made to boost social development and progress, especially in those key sectors and aspects concerning national development and mass interests, the premier said.Wen began his online chat with netizens at 9 a.m. Sunday jointly hosted by the central government website (www.gov.cn) and Xinhua News Agency website (www.news.cn).

BEIJING, April 19 (Xinhuanet) -- Almost one year after the disastrous oil spill, scientists believe that the overall health of the Gulf of Mexico as nearly back to normal.However, the scientists restrain their optimism about nature's resiliency with the glaring blemishes out there. It's been nearly a year since BP's Gulf of Mexico oil spill began last April, triggering one of the world's worst environmental disasters. Nearly 5 million barrels of oil leaked from the ruptured Deepwater Horizon well during the months-long catastrophe.BP said last November that the disaster cost it nearly 40 billion U.S. dollars, according to a Guardian report.According to a BP survey of researchers, over three dozen scientists grade the Gulf's big picture health a 68 on average, using a 1-to-100 scale.That's just a few points below the 71 the same researchers gave last summer when asked what grade they would give the ecosystem before the spill. And it's an improvement from the 65 given back in October after months of the oil spill.

BEIJING, May 20 (Xinhuanet) -- Scientists have discovered a Jupiter-sized exoplanet that is completely unbound from a host star, according the scientific journal "Nature" published Thursday.The research was conducted by astrophysicists from Osaka University in Japan.Using the technique called "gravitational microlensing", scientists turned their telescopes towards the centre of the Milky Way and detected this "lonely planet" moving in a extremely large orbit, which suggested it does not connect to any solar system.Then they estimated the total number of such wondering planets could be as many as 400 billion, based on the detection efficiency. This number far outnumbers the main-sequence stars such as our Sun."This is an amazing result, and if it is right, the implications for planet formation are profound," says astronomer Debra Fischer at Yale University in New Haven, Connecticut.And scientist began to consider the possibility that liquid water could exist on this kind of unbound planets. "That might be an attractive possibility for life," said David Stevenson, a planetary scientist at the California Institute of Technology.

来源：资阳报