If a country has a population of 20 million and its rate of natural population increase is

外语类 成人英语三级 已帮助 人

If a country has a population of 20 million and its rate of natural population increase is 2%, after 34 years, the country will have a population of ______.

A.80 million

B.60 million

C.50 million

D.40 million

请帮忙给出正确答案和分析,谢谢!

热搜:a是b的充分条件,b是a的必要条件吗