单词：embryonic age
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Health nbsp; Economics The big story for Washington for 2002 is going to be the November elections. And while that’s a long way off for the rest of the country, it’s very much on politicians- mind
疯狂英语2002年
Beginner A: how old is Keith? B: hes 21. how old is James？ A: hes a year older than Keith, but he looks younger. B: hows your father? A: hes fine. He retired last week. Its turning poing in his life. Now he can relax and enjoy his retirement. B: he
情景英语口语100主题
Christopher Reeve: A True Superman Christopher Reeve, the cinematic 1 Superman who became a real-life inspiration for people with spinal 2 injuries through his painstaking struggle to overcome total p
英语沙龙2004全年合辑下
While on an expedition in western China twenty years ago, some explorers discovered the mummies of a tall, red-haired people. Though estimated to be nearly 4,000 years old, the corpses were quite well
赖世雄中级美国英语
Agricultural officials say they think an organic farm in northern Germany was the source of the deadly E. coli outbreak that has sickened more than 2,000 people in Europe. Twenty-two people have died. Investigators traced the bacteria to beansprouts
2011年NPR美国国家公共电台6月
In a landmark development within stem cell research, scientists say theyve used a cloning technique to make embryonic stem cells that match a patients DNA. The journal Nature highlights a study that shows the potential for using the technology to rep
2011年NPR美国国家公共电台10月
HEALTH REPORT - Gene Therapy Used to Treat Cancer | Stem Cell Study Leads to Criticism, QuestionsBy VOA Staffs Broadcast: Wednesday, September 06, 2006 This is the VOA Special English Health Report. A
2006年慢速英语（九）月
The Internet and social media are proving to be a double-edged sword. While they expand the possibilities of commerce and information-sharing, they are also used by terrorists(恐怖分子) to recruit members, to promote hate, and even to reveal ways
英语新闻
This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? One of the dreams of biomedical scientists is to be able to transform adult cells into other kinds of cells. And thus avoid some of the ethical concerns of working with
Scientific American(十一)月
President Obama says a preliminary agreement reached today with Russian President Dmitry Medvedev is an important step toward increasing nuclear security. We have signed a joint understanding for a follow-on treaty to the START agreement that will r
2009年NPR美国国家公共电台7月
HEALTH REPORT - New Embryonic Stem Cell Lines Developed for Researchers By Paul Thompson Broadcast: Wednesday, August 11, 2004 This is Gwen Outen with the VOA Special English Health Report. Researcher
健康与经济
[全屏观看] 点击右键- 另存为 可保存这个Flash影片 Description: Age of Japan is an incredible puzzle entertainment, which shines with unique graphics. All 40 game levels are rendered with Japane...
Daily Free Games
[全屏观看] 点击右键- 另存为 可保存这个Flash影片 Description: Age of Japan is an incredible puzzle entertainment, which shines with unique graphics. All 40 game levels are rendered with Japane...
Daily Free Games
This is the VOA Special English Health Report. Bethesda, Maryland, near Washington, D.C., is home to the National Institutes of Health. N.I.H. calls itself the Nation's Medical Research Agency. But it supports research worldwide with its budget of a
VOA慢速英语2008年（十一）月
AS IT IS 2015-11-02 Can Fish Teach Humans to Regrow Teeth? 人类能学习鱼类的牙齿再生术么? Most people are born with two sets of teeth. They use baby teeth to break down food as children. As they become adults, the baby teeth are replaced
2015年VOA慢速英语(十一)月
By Ted Landphair Washington 26 July 2007 For a second time in a year, President Bush has vetoed a bill that would have sanctioned federally funded stem cell research using human embryos. His stance reflects conservatives' view that destroying life to
2007年VOA标准英语（七月）
An end to grey hair and crows-feet could be just 10 years away after scientists showed 科学家发现，动物的衰老过程有可能逆转。 it is possible to reverse ageing in animals. 从此以后，可能仅需10年，人类就可以告别白发
趣味英语
Finding a Healthier Lifestyle - Committing to Change Everyone wants to live a healthier lifestyle and everyone wants to look better in their swimsuit. However, many people don't know where to begin or what questions to ask. Six months ago I was in th
阅读空间
WASHINGTON, April 16 (Xinhua) -- Researchers at the University of Colorado (CU) have found that lack of a specific gene interrupts neural tube closure, a condition that can cause death or paralysis. The study was the cover story this week in the jour
英语新闻