诶？这么富有争议性的话题就这么凉啦？不会吧不会吧 楼主说不定还指着这个上十大呢 我来炒一炒 Human sex ratio From Wikipedia, the free encyclopedia In humans, the natural ratio between males and females at birth is slightly biased towards the male sex, being estimated to be about 1.05[2] or 1.06[3] or within a narrow range from 1.03 to 1.06[4] males/per female born. 　 为啥出生时男性和女性之间的自然比例偏向于男性呢 好气哦 (more...)