There are 1.3 billion people in China（1.3 billion划线）划线提问____ the _英语解答

There are 1.3 billion people in China（1.3 billion划线）划线提问
____ the population ____ China?

人气：188 ℃　时间：2019-09-29 00:14:32

解答

What's the population of China?