单词：ceramic attenuator element
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Most plants capture sunlight. And the results are usually green. Because in photosynthesis, plant chlorophyll uses wavelengths of blue and our sun's ab
Scientific American(四)月
This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan
Scientific American(八)月
雅思阅读判断题对于很多同学来说可谓又爱又恨。在雅思阅读总体题型上来说，判断题难度适中，出题方式熟悉。但从判断题本身角度讲，很多同学都无法排除NOT GIVEN的情况....今天新东方网雅
雅思英语
BEIJING, March 1 (Xinhuanet) -- A biotechnology(生物技术) company says it can produce diesel using the same ingredients(配制成分) that make grass grow, media reported on Monday. The Massachusetts company Joule Unlimited has created a genetica
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WASHINGTON, Dec. 22 (Xinhua) -- The journal Science on Thursday chose the HPTN 052 clinical trial, an international HIV prevention trial as the 2011 Breakthrough of the Year. The study found that if HIV-infected heterosexual individuals begin taking
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雅思阅读判断题被同学们视为纠结题目之一，因为其类似于国内考试判断对错题，但又增加了not given的选项提高题目难度，所以对于广大考生来说多少有些挑战。殊不知这一类雅思题目解题方
雅思英语