送交者: 008 于 2007-12-21, 22:44:32:

回答: 北京大学, 近亲繁殖 = 7/8 not 8/8 由 meiyou 于 2007-12-21, 20:22:08:

• mm, did not know that (无内容) - meiyou (0 bytes) 2007-12-22, 08:12:25 (193976)

加跟贴