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确实是文科生，月球背面是背对地球，但不背对太阳，和月球正面一样14天白天14天黑夜

gamemaster((~~))
(#11864817@0)
Last Updated: 2019-1-3
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完成人类史航天史上的一项壮举，嫦娥四号成功着落月球背面！
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