[医] 半腱肌

Sauropods like Brachiosaurus and Diplodocus were the biggest beasts to ever roam the Earth. And these dinosaurs had enormously long necks. Which poses an anatomical problem: they needed to move their necks side to side and up and down to graze, but t

发表于:2019-01-08 / 阅读(83) / 评论(0) 分类 Scientific American(十)月

Frustrations have turned to anger for some of the families of the passengers on board the missing Malaysian plane. Distraught Chinese relatives had to be dragged from a media briefing after they burst in and accused the authorities of not doing enoug

发表于:2019-02-14 / 阅读(61) / 评论(0) 分类 澳洲ABC新闻快递2014年
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