单词：SIF cell
单词：SIF cell 相关文章
By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The
VOA2003（下）-环境与健康
There are five kinds of . . . There are two types of . . . There are three categories of . . . We can divide (this) into three parts: 1) 2) 3) This can be broken down into four sections. They are: A) B) C) D)
英语词组对话
By Ken Schwartz Washington 26 September 2006 John Negroponte U.S. National Intelligence Director John Negroponte says news reports of a document which says the war in Iraq has spawned a new generation of Islamic terrorists distorts what he calls the
2006年VOA标准英语（九月）
WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo
英语新闻
Turn Off Your Cell Phone 关掉你的手机 We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and starte
趣味英语
WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi
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