Pythons Unlock Human Heart Health Secrets Studying snakes might seem like an unlikely way to help people with heart disease, but a pythons remarkable ability to quickly enlarge its heart during digestion has Colorado medical researchers looking towar

发表于:2018-12-16 / 阅读(31) / 评论(0) 分类 VOA标准英语2011年(十一月)

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

发表于:2019-01-08 / 阅读(79) / 评论(0) 分类 Scientific American(十一)月

HEALTH REPORT - Blood Transfusion Blamed for Second 'Mad Cow' Infection in Humans By Cynthia Kirk Broadcast: Wednesday, August 18, 2004 This is Gwen Outen with the VOA Special English Health Report. B

发表于:2019-01-30 / 阅读(38) / 评论(0) 分类 健康与经济

1,supplementary nutrients Vitamin D was mainly rely on two channels, one is to obtain from food, and the other one is on the adoption of solar ultraviolet radiation in human skin synthesis of vitamin D3, it can even in the small intestine to pr

发表于:2019-01-31 / 阅读(60) / 评论(0) 分类 阅读空间

BEIJING, Sept. 26 (Xinhuanet) -- Fu Ming'ai was reunited with his family on Sunday after 22 years. He is one of the more than 1,400 abducted children who were helped by a national DNA database, which helps match trafficked children and their parents.

发表于:2019-02-02 / 阅读(58) / 评论(0) 分类 英语新闻

Stefan: I would never hurt you. You're safe with me. Elena: All those animal attacks, those people who died... Stefan: No. That was Damon. Elena: Damon? Stefan: Yes. I don't drink human blood. That's not how I choose to survive, but Damon does. I'll

发表于:2019-02-23 / 阅读(40) / 评论(0) 分类 跟着美剧练发音