[化] 过三氧化二镨

SSS 2012-03-28

This is Scientific Americans 60 Second Science, I am Cynthia Graber, this will just take a minute. Compounds found in the herb thyme have antibiotic properties. Now scientists have demonstrated that thyme might have a future role in fighting acne. A

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VOA慢速英语2009-Health Report - Study Links Hot Weather to Migra

This is the VOA Special English Health Report. A migraine headache can cause disabling pain. People may not feel back to normal for hours or even days. Migraine headaches are most common among young adults and middle-aged people. In the United State

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U.S. President Barack Obama says he seeks unity at the G-20 economic summit in London, and a new arms deal with Russia. It was a busy day of diplomacy for Mr. Obama as he launched his first overseas trip as president. Britain's Prime Minister Gordon

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2006年VOA标准英语-India's Holy City Hums with Life as Kashmi

By Anjana Pasricha New Delhi 09 March 2006 In India, the holy Hindu city of Varanasi has bounced back to normal two days after it was hit by deadly bomb blasts. An unknown Muslim militant group in Kas

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basis of satisfactory wages

bean planter