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Millions of years ago, the embryo of a distant ancestor of ours would have shared with us many of these features. As well as giving rise to us, it gave rise to all sorts of other creatures. And in tho
生命物语
Compared to the dose level of a medical chest x-ray, a backscatter scan is thousands of times lower. Since the Christmas Day attempted bombing of a U.S. airliner, airports are looking for ways to tighten security. One method being adopted by some and
VOA标准英语2010年(三月)
BEIJING, June 4 (Xinhua) -- China's central and local governments had invested 105 billion yuan (16.6 billion U.S. dollars) in its award and subsidy mechanism for village-level public projects by 2011, and around 985,000 public projects were built in
英语新闻
Science and technology 科学技术 Ageing 衰老 Forever young? 青春永驻？ A way to counteract part of the process of growing old 一个减缓衰老进程的途径 BIOLOGISTS have made a lot of progress in understanding ageing. 在对人类衰老
经济学人科技系列
8 Things You Shouldn't Do Before Bed Oh, the power of a good nights sleep. A whole gamut of positive benefits can be seen from getting enough rest, but for many of us, hitting the sack can be challenging. Theres plenty of advice out there about what
阅读空间
今天我们要学的词是 mechanism. Mechanism 机制。Britain will trigger the mechanism to leave the European Union next week. 英国下星期将启动离开欧盟的机制。Pakistan and Afghanistan agreed last week to form a joint mechanism to
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