单词：number of ram strokes per minute
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This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? Creationists often publish lists of a few dozen scientists who doubt Darwin. So in 2003, the National Center for Science Education put together a list of 200 scientist
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By Lisa Schlein Geneva 01 January 2006 An elderly woman carries part of the food ration she received from the World Food Program in the drought-stricken southern Somali town of Wajid The World Food Pr
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This is Scientific American's 60-Second Science,I am Karen Hopkin.This'll just take a minute. Losing weight is no walk in the park. (Although a walk in the park wouldnt hurt). Seems no matter what diet you try, those stubborn love handles just wont g
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This is Scientific American's 60-Second Science, I am Karen Hopkin.This'll just take a minute. Counting is one of the first things we teach our kids. I mean, every parents probably said, You had better be in that bed by the time I count to three. Fol
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A: Good morning. United Airline. B: Hello. I'd like to speak to Mr. Reynolds. A: I'm sorry he's not in right now. Would you like to leave a message? -------------------------------------------------------------------------------- A: May I help you? B
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