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2016-06-29
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2016-06-22
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2016-05-30
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2016-05-25
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2016-05-24
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2016-05-21
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2016-05-16
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2016-05-11
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2016-05-09
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2016-05-09
美國科學家最新研究表明,未來100年之內,地球磁場將出現方向反轉。地球磁極反轉意味著所有指南針將指南而不是指北,之前認為這一微妙變化需要數千年才能現實,然而該項研究顯示磁場反轉未來不久將會發生。
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2016-05-05
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2016-05-04
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2016-04-21
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2016-03-31
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2016-03-27
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2016-03-09
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2016-02-27
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2016-02-27
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2016-02-27
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2016-02-26