同性恋的机制尚不清楚，现在很多科研论证它可能是与遗传或是先天的脑结构有关。

来源: ^3.1415926^ 于 2011-07-05 12:04:26 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.