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By David McAlary Washington 10 May 2006 There is new evidence in the case of the missing woolly mammoth. In fact, several species of large mammals in addition to the mammoth went missing at the end of
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2006年VOA标准英语(五月)
By Paul Sisco Washington 04 May 2007 The United Nations Intergovernmental Panel on Climate Change on Friday plans to issue a third report on ways to offset global warming. Scientists and government administrators from more than 120 countries have bee
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2007年VOA标准英语(五月)
In English, it is the little words that cause the problems. Big words like misappropriation or truthfulness are easy. If you do not understand what they mean, you can look them up in a dictionary. But little words like up, down, on and off are diffic
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