单词：reactive metal
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BY STEPHEN R .COVEEY The first habit is 1)proactivity. Be proactive. The word proactivity is fairly common in management literature, but you won't find it in the dictionary. It means more than merely
疯狂英语2001年
This is Scientific American -60 seconds science. Im Cynthia Graber. This will just take a minute. A coal mine can degrade its local environment. But fungus may inadvertently help clean up the mine with its own waste products. Researchers worked with
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This is scientific Americans 60 second science,I'm Cynthia Graber.This will just take a minute.A coal mine can decrease the local environment but a Fungi may indivertantly help cleanup the mine with its own waste products. Researchers worked with the
Scientific American(七)月
英语美文-主动与被动语言的重要性 语言是表达自我，交流十分重要的途径。一个人的语言能传达很多信息，包括一个人的性格，思维，态度，生活环境，经历，职业等等。很多时候，我们作为
卡卡课堂早餐英语
HEALTH REPORT-Heart Disease and C-Reactive Protein By Cynthia Kirk Broadcast: Wednesday, January 19, 2005 I'm Gwen Outen with the VOA Special English Health Report. American researchers have found evi
健康与经济
C-reactive protein is an indication of inflammation in the body, and, at high levels, is considered an early sign of future heart disease. It's a risk factor in a similar way that elevated cholesterol is a risk factor for heart disease, says Asheley
VOA标准英语2010年(三月)