单词：tetraplicates
单词：tetraplicates 相关文章
Leading anti-hunger advocates are fasting to protest U.S. budget-cutting proposals that could threaten some of the world's most vulnerable people. The budget passed by the House of Representatives includes deep cuts to programs aimed at alleviating h
VOA标准英语2011年(三月)
This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang
Scientific American(一)月
T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗
医务英语
By David McAlary Washington 13 December 2006 Two long awaited studies from Africa show that a man's risk of getting the AIDS virus heterosexually is cut in half if he is circumcised. As we hear from VOA's David McAlary in Washington, public health e
2006年VOA标准英语（十二月）
By Michael Bowman Washington 30 May 2007 President Bush says a primary goal of immigration reform is to bring millions of illegal aliens out of the shadows and provide a path to legal residency and eventual U.S. citizenship. But while the president c
2007年VOA标准英语（五月）
By Zulima Palacio Washington 28 June 2007 Breadfruit is widely cultivated in tropical regions of the world, especially in the Pacific. And yet, advocates say it is mostly ignored as a potential solution to hunger. They point out that breadfruit prod
2007年VOA标准英语（六月）
By Mike O'Sullivan Los Angeles 21 March 2007 Most nations subscribe to shared concepts of human rights, such as the right to free speech and free practice of religion, and the right to shape the decisions of government. But as Mike O'Sullivan report
2007年VOA标准英语（三月）
By Steve Herman Tokyo 01 March 2006 Iran says it accepts in principle a Russian offer aimed at heading off international concerns over Iran's nuclear plans, and talks between the two nations were due
2006年VOA标准英语（三月）
By Al Pessin Washington 01 March 2006 US armed forces in Iraq A poll of U.S. troops in Iraq indicates that many of them believe the force should be withdrawn within a year, and some say sooner. A Defe
2006年VOA标准英语（三月）
A: Ok, lets go through this one more time. I dont want anymore ruined or dyed blouses! B: I know, I know. OK, so I have to separate the colors from the whites and put them in this strange looking contraption so called washing machine. A: Right. You h
纯正地道美语
14/05/2017 YESTERDAY Chris Sutton and Kelly Cates take your calls on the weekend's action.
英语听力精选进阶版
10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur
万物简史