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This is Scientific American - 60 seconds Science. I'm Synthia Graver. Got a minute. It's obivious that say turning the lights off saves money, but being reminded that using less energy saves money may not be the most effective way to motivate consume
2015年Scientific American(一)月
Researchers call it the Lazarus effect the dramatic beneficial changes that antiretroviral drugs ARVs - can bring to HIV/AIDS patients and their families. The drugs are changing lives. In the biblical story, Jesus is said to have raised Lazarus from
VOA标准英语2010年(十二)月
The middle class in America's cities has shrunk dramatically in the 21st century. 美国城市的中产阶级阵容在本世纪大幅萎缩。 A Pew Research Center analysis of Census Bureau data looked at the state of the middle class in America's m
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According to the new document, a hukou is a basic right for all citizens since it's linked with social welfare as well as a variety of other rights, thus it should be protected. The guidelines require the improvement on current household registration
2016CRI中国国际广播电台
今天学的词是top。作为名词， Top的意思是顶部， 顶端的意思。比如the top of the hill, 山顶， the tabletop, 桌面等等。Top也可以作动词，意思是达到或是超过。 有报道说，美国人口这个月将达到三
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