阅读以下文字。完成题。   “出淤泥而不染,濯清涟而不妖”,荷花的圣洁已经被人们称颂了近千年之久。现在,科学家们终于发现

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{MP3:http://down.233.com/2012/listenfiles/xdftl/Test5.mp3}Sc

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