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For decades some have suspected that there might be others out there, intelligent beings capable of

ADHD指注意缺陷多动障碍，又称多动症。英国著名喜剧演员Rory Bremner受到多动症的困扰，他采访医疗机构，尝试新药，了解ADHD背后的科学

A few weeks ago, the National Health Service was hit by a widespread and devastating cyber attack -

Volcanoes have long helped shape the Earth. But what is less well known is that there are volcanoes

The car has shrunk the world, increased personal freedom and in so many ways expanded our horizons,