生物教授在课堂上讲XY理论，说生男生女主要决定于男方。有个学生反对问教授，为什么他的大老婆生的2个全是女的，而第二个老婆生的二个全是男的。 (水城百事)

by 匿名, Sunday, December 16, 2018, 08:32

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理论都是错的？

by 匿名, Sunday, December 16, 2018, 08:33 @ 匿名

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by 匿名, Sunday, December 16, 2018, 08:57 @ 匿名

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by 匿名, Sunday, December 16, 2018, 14:36 @ 匿名

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by :-D :-D :-D :-D, Sunday, December 16, 2018, 19:04 @ 匿名

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by :-P 匿名, Sunday, December 16, 2018, 22:22 @ :-D :-D :-D :-D

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by 一家亲嘛:-D :-D :-D, Sunday, December 16, 2018, 22:24 @ :-P 匿名

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by 匿名, Monday, December 17, 2018, 10:38 @ 一家亲嘛:-D :-D :-D

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