美国国家公共电台 NPR A New Kind Of March Madness Hits Schools

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SSS 2009-08-24

Two years ago, Duke University Medical Center researchers said that the supposedly useless appendix is actually where good gut bacteria safely hide out during some unpleasant intestinal conditions. Now the research team has looked at the appendix ove

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She had a mole on her face. She hated it. It was on her left cheek. It wasn't far from her mouth. She touched it every day. She wished that it would go away. But it didn't. It was an ugly brown bump on her cheek. It was a dark brown circle. It was ab

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This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? Quality truffles can sell for more than a $1000 a pound. Theyre also valuable in environmental research, work thats discussed in an article called The Hidden Life of Tru

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1. The White House says a Senate-backed deal to reopen the government and raise the debt ceiling achieves what's necessary. The deal would reopen the government through at least January 15th and the nation's borrowing authority would be extended thro

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VOA标准英语2008年-Australian, US Scientists Bring Extinct Gene Ba

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