About the gender ratio, you will be surprised

来源: 于 2011-08-17 12:22:42 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

http://en.wikipedia.org/wiki/Sex_ratio

 

Phillippine is 1 of countries with equal gender ratio.

 

USA has more females than males.