组织化学的

SSS 2008-08-20

This is Scientific Americans Sixty Seconds Science. Im Steve Mirsky. Got a minute? Youve no doubt heard that grapefruit juice can greatly increase the effects of some drugs. Even to a dangerous degree. Pharmacologist David Bailey made that discovery

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美国国家公共电台 NPR Jefferson's Monticello Makes Room For Sally Hemings

MICHEL MARTIN, HOST: The nation's third president, Thomas Jefferson, is revered as a Founding Father of the nation, principal author of the Declaration of Independence, a scholar and inventor, and he owned 607 human beings - 400 of them lived at his

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AGRICULTURE REPORT - Chemicals on Organic Food

AGRICULTURE REPORT – July 30, 2002: Chemicals on Organic Food By George Grow (Photo -Scott Bauer) This is the VOA Special English AGRICULTURE REPORT. Farmers who grow organic food do not use chemica

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农业与发展

2006年VOA标准英语-Halabja Bears Scars 18 Years After Chemical Att

By Margaret Besheer Halabja 16 July 2006 Halabja cemetery Former Iraqi dictator Saddam Hussein is facing several trials on separate charges of crimes against humanity. One of those trials will focus on the 1988 gassing deaths of some 5,000 Kurds in

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