2009年11月16日 星期一

11/16 Daily Podcast

◆ CNN Student News│CNN

STORY HIGHLIGHTS
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◆ 60-Second Science│ ScientificAmerican

Why Bangladesh Water Contains Arsenic
In a study in the journal Nature Geoscience, M.I.T. researchers identify what they believe is the sequence of events whereby arsenic trapped in the sediment of the Ganges Delta is finding its way into the drinking water supply of Bangladesh. Cynthia Graber reports

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孟加拉2百萬人砷中毒 禍首找到

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