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如果把人类的 DNA 展开,长度是多少呢?
00:22
19 de maio de 2022
00:22
19 de maio de 2022
Descrição
将一个人的 DNA 全部展开,再首尾相连, 长度将达到1020亿千米。 这个长度,等于从地球往返月球3000次。
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