单词：oligophenylene
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This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro
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World Tai Chi and Qigong Day is an annual event held on the last Saturday of April each year. Its aim is to promote practices of Tai Chi and Qigong. In particular, followers of Tai Chi and Qigong hope to educate the world about the health benefits of
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This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ
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By Al Pessin Kandahar, Afghanistan 15 June 2006 The commander of NATO forces worldwide says his troops from several countries are on track to take responsibility for security in southern Afghanistan in July, and that NATO could expand to the one rem
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I have time to join the IGO and be an ambassador to help new incoming international students get use to the environment here at Georgetown University and Washington, DC. Shu Tao is a second-year PhD student in the Department of Biology specializing i
VOA标准英语2010年(八)月
By Al Pessin Pentagon 06 October 2006 A senior U.S. general in Iraq says the suspension of an entire Iraqi police brigade on Wednesday demonstrates that the interior minister is serious about building an effective force. The general also says thousa
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