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科技苑【20140724】看点介绍
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科技苑20140724集剧情：第20140724期
从一粒豆子到一根豆芽，你知道吗，它的营养成分发生了怎样神奇的变化;一把普通的豆芽菜，你知道吗，为什么被称为中国食品史上的重大发明?《发豆芽其实很奇妙》，《科技苑》为您讲述。rn
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