there must be something we do not know. Because

来源: Smart 于 2016-12-19 09:42:15 [] [旧帖] [给我悄悄话] 阅读数 : (151 bytes)
回答: 妈是，爹是ABC。 由 rockman1988 于 2016-12-19 09:34:29

if nothing special to that kid, he cannot be selected. Or this is pure by luck. We all know luck is the last thing one can trust to rely on.

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