外行問一下，雌雄是怎麽定義的，由什麽引起的，螺旋或棒狀是怎樣產生的

來源: 7.5 於 2012-11-08 10:08:03 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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