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发表于:2019-01-03 / 阅读(36) / 评论(0)

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In 2017, European scientists plan to go on a very special space mission - landing on an asteroid. But why do they want to visit an asteroid and will there be space for Callum on the spacecraft?! 欧洲科学家计划于 2017 年进行一次航空任务 - 降落在小行

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By Lisa Bryant Paris 18 September 2009 NATO Secretary-General Anders Fogh Rasmussen speaks during a speech at the Concert Noble in Brussels, Belgium, 18 Sep 2009 In another sign of closer ties between western nations and Russia, NATO's new secretary

发表于:2019-01-13 / 阅读(31) / 评论(0)

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发表于:2019-01-31 / 阅读(43) / 评论(0)

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Germany's new coalition government is calling for U.S. nuclear missiles to be removed from Europe. A London research organization says Germany's announcement has reopened the global debate about whether nuclear weapons help or hinder global security.

发表于:2019-02-12 / 阅读(33) / 评论(0)

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发表于:2019-02-16 / 阅读(38) / 评论(0)

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