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The American Museum of Natural Historys Hayden Planetarium hosted a discussion of the future of manned space flight on March 15th. Retired Air Force General Lester Lyles was asked about the militarys interest in space: Its the high ground. Its the ul
Scientific American(三)月
Ben was watching Ultimate Fighting on TV. In Ultimate Fighting, two fighters fight inside a cage. The 8-sided cage is about 30 feet across. The cage is almost six feet high. The fighters are barefoot and shirtless. They wear fingerless gloves. They p
英文短篇故事（纽约）
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By Melinda Smith Washington, D.C. 02 January 2007 watch Proton Pump report A basic tenet often associated with the practice of medicine is that physicians do no harm.' But even with the best intentions, sometimes a drug prescribed for one ailment ca
2007年VOA标准英语（一月）
Marketing is a funny thing. Sometimes I like it, other times I hate it. There is definitely an art to marketing. Some of the advertising campaigns you see are the work of a genius. Someone has thought of a great idea, slogan and advertising campaign
纯正英语一分钟
By David McAlary Washington 25 January 2006 When it comes to lung cancer rates among smokers, scientists say race and ethnicity matter. A new study reports significant differences in the rates among s
2006年VOA标准英语（一月）