单词：anode negative voltage time
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Common batteries are electrochemical cells. And they may get better thanks to living cells: the multicellular organism called brown algae. Lithium ion
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BEIJING, Oct. 12 (Xinhuanet) -- Children who spend hours each day watching television or playing computer games have more psychological（心理的） difficulties than those who don't, according to a study published in the US journal Pediatrics（小儿
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Be Who You Want To Be Your colleagues might like you better if you like yourself better Chandler Bing, Friends Your self-image is the one largest factor to your success and to your happiness. If you can learn to truly appreciate yourself and respect
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1. This sounds interesting, but I have too much on my plate at the moment. 听起来很有趣，但是我现在有太多的事情要做。 如果你在表达异议时用赞美开头：听起来很有趣，会让人的心理防御降低，这时你可以
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Beijing and Washington are expected to use Xi Jinping's visit to help finalize negative lists for each-other's respective economies after various rounds of negotiations on a bilateral investment treaty. Li Lijie's company runs a business-to-business
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