单词：inert solid component
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These discoveries raised the stakes. Here was a planet similar to our own. Mars might not have cities or civilizations. But it could be home to other smaller life forms like microbes. Chris McKay is N
火星生命
President Obama has just arrived in Afghanistan in what was an unannounced trip on this anniversary of the US raid that led to the death of al-Qaeda leader Osama bin Laden. Mr. Obama and his Afghanistan counterpart Hamid Karzai are expected to approv
2012年NPR美国国家公共电台5月
The New Age of Nuclear Power By Spencer Reiss / Originally published in Wired . Get ready for the mass-produce, meltdown -proof future of nuclear energy 1 A team of Chinese scientists advising the Bei
彭蒙惠英语
A Western Australian company has made a hot chip vending machine that deep fries frozen chips while you wait. 澳大利亚西部一家公司设计出一款热薯条自动贩卖机，在顾客等候期间能自动将冷冻薯条烤制成热腾腾的薯条
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Psychology 心理学 How dead is dead? 怎样死才算死？ Sometimes, those who have died seem more alive than those who have not 有时，死人似乎比活人更活。 Aug 20th 2011 | from the print edition IN GENERAL, people are pretty good at d
经济学人综合
Since then further research has shown that there is or may well be a bacterial component in all kinds of other disorders, 自那以来，进一步的研究表明，在所有别的疾病， heart disease, asthma, arthritis, multiple sclerosis, several
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