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　　Investigative documentary filmmaker Alex Gibney—best known for 2008’s Oscar-winning Taxi to the Da

　　In 1966 the Spanish Army built a huge cemetery with over 5000 graves at Mirandilla Valley in Burgo

The story of the 140,000 Chinese workers who left their homes and came to war-torn Europe in 1917 an

几十年来，有些人一直怀疑可能还有其他人，能够与我们交流，甚至访问我们的世界的智能生物。这听起来像是科幻小说，但今天来自全球各地的科学家正在宇宙中搜寻来自外星人的信号。2006 年，夫妻团队 Dunca

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

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

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

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