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“胖5”复飞，从5说起
source link: https://tech.sina.com.cn/d/s/2019-12-27/doc-iihnzahk0284461.shtml
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来源：中国科普博览纵观世界航天史，每当5这个数字出现的时候就意味着，有大事要发生了！1969年，土星5号首次将人类送到月球；2003年，神舟5号载人飞船将第一位中国宇航员送入太空！今年，长征5号火箭将择机带着东方红5号平台首飞试验星奔向太空
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