davidif:

But the chinese govt does abort a lot of babies.

Some people should have used condom for conception control. Any way, it's ture that abortion is common in china, even there are so many advers on the news paper. 
Most of the gilrs abort not only because the law. Coz most of them are not marriaged,  and raise a children is a hard work in China for most of the families, have a baby without preparation is very difficult. coz all the parents would like to provide the limited money and energy on their children, have one child is better. Indeed, food don't have to worry abt, just they are concern abt the education only, put all money on one child is supposed to afford better education for their competion in future society. As you know, the large population is the reason of the competion, that's why chinese supply plenty cheap products come from the workers with low salary.

Many chinese prefer son to daughter, it's due to the traditional culture that the son succeed the family name. But this situation is much better than before，coz more and more people changed their minds. The law forbidd the people to identify the sex of the fetus in order to prevent people to abort the femal fetus. But what's true is that the man is much more than woman in china. 119 : 100 , means 19 men have to be bachelor,pls note the figure is not issued by gov but some org.