[医] 四肢行走

A robot dog developed by a Chinese university impressed the society for the technology that has reached world-class levels, developers said. The 1-meter-long robot dog, Jueying, developed by Zhejiang University in East China's Zhejiang Province, has

发表于:2018-12-24 / 阅读(69) / 评论(0) 分类 2018CRI中国国际广播电台

When Michael Phelps is out of the water, he towers over mere non-Olympic mortals. Then he slips into the pool, and makes record-breaking speed seem effortless. His height, it turns out, is no accident. According to research published in The Journal o

发表于:2018-12-24 / 阅读(52) / 评论(0) 分类 Scientific American(七)月

Big cats or wolves seem like scaled-up versions of the tabby or terrier sleeping on your sofa. But the proportions do subtly change as animals get larger. For one thing, big animals feet are smaller relative to their bodies than are smaller beasts. B

发表于:2019-01-08 / 阅读(51) / 评论(0) 分类 Scientific American(三)月

The gut of the tobacco hawk moth caterpillar used in the study moves forward independently of, and ahead of, the surrounding body and wall and legs. By turning a powerful x-ray machine on a caterpillar, scientistists have discovered a novel way of mo

发表于:2019-01-13 / 阅读(41) / 评论(0) 分类 VOA标准英语2010年(七)月

Which species would take over the world if humans went extinct? 如果人类灭绝了,哪类物种会统治世界? 来自Quora的网友总结: Well it won't be fecking dolphins, that's for sure. Because: 当然,那TM肯定不可能是海豚。因

发表于:2019-01-26 / 阅读(37) / 评论(0) 分类 阅读空间

Please, sir, he is weeding the garden, replied a small voice. 先生,他在花园里拔草。一个声音低声回答。 To be sure, said Squeers, by no means disconcerted, 怎么回事。斯格威尔说道,声音坦然,没有丝毫困窘不安。

发表于:2019-02-13 / 阅读(26) / 评论(0) 分类 美国语文第五册
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