[医] 睫状辐射线, 睫状突

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It sits a million miles away from the Earth 它位于距地球一百万里处的 at the Lagrangian point 拉格朗日点 where the gravitational pull from the Earth and the sun is equal. 此处地球和太阳的引力相等 Fixed in space it has an u

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太阳科普

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发表于:2019-01-07 / 阅读(42) / 评论(0)

万花筒2013年

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As the 2010 football World Cup enters its final hours in South Africa, another football tournament is taking place in the impoverished township of Alexandra, in northeastern Johannesburg. Several hundred young people from disadvantaged communities in

发表于:2019-01-31 / 阅读(45) / 评论(0)

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发表于:2019-02-17 / 阅读(46) / 评论(0)

经济学人综合

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Colder weather is setting in and with the change of seasons you might also notice more people coughing, sneezing and calling in sick. It's a harsh reality that these chilly months are strongly associated with the cold and flu. 天气慢慢地越变越冷

发表于:2019-02-17 / 阅读(42) / 评论(0)

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By Phillip Wellman Abidjan 12 November 2007 An official spokesman for Ivorian President Laurent Gbagbo has said the president believes political leaders from across the spectrum must work together in order to guarantee lasting peace in the country. T

发表于:2019-02-20 / 阅读(85) / 评论(0)

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