文章列表
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1.美国癌症死亡率持续下降
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A report from the nation's leading cancer organizations shows rates of death in the United States from all cancers for men and women continued to decl...
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2.340万年前两种人类祖先曾同时存在
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A team of scientists has announced the discovery of a 3.4 million-year-old partial foot from the Woranso-Mille area of the Afar region of Ethiopia. Th...
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3.研究人员发现光穿透金属的新方法
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Helping bridge the gap between photonics(光电) and electronics, researchers from Purdue University have coaxed a thin film of titanium nitride(氮化...
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4.大面积海洋保护区有利于保护海豚
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Ecologists in New Zealand have shown for the first time that Marine Protected Areas -- long advocated as a way of protecting threatened marine mammals...
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5.橡树岭实验室将聚乙烯转化为碳纤维
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Common material such as polyethylene(聚乙烯) used in plastic bags could be turned into something far more valuable through a process being developed...
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6.骨髓细胞对慢性缺血性心力衰竭疗效不大
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Use of a patient's bone marrow cells for treating chronic ischemic(缺血性的) heart failure did not result in improvement on most measures of heart f...
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7.人类起源于东非大裂谷
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The huge changes in Earth's crust that influenced human evolution are being redefined, according to research published March 26 in Nature Geoscience. ...
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8.欧洲尼安德特人在人类出现前就已绝迹
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Western Europe has long been held to be the cradle of Neandertal evolution since many of the earliest discoveries were from sites in this region. But ...
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9.双髻鲨遭遇双重困境
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Identity confusion between a new, yet unnamed shark species, originally discovered off the eastern United States by Nova Southeastern University Ocean...
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10.墨西哥湾漏油对深海生物的影响
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Compelling(引人注目的) evidence of the impact of the Deepwater Horizon oil spill on deep-sea corals will be published online in the Early Edition of...