人口自然结构。
参考答案：
是指人口各自然属性之间的比例关系。主要包括人口种族构成、人口性别构成和人口年龄构成。
I’m concerned, the computer you want is not very expensive and you can afford it.
A．As far as
B．As long as
C．As much as
D．As well as
未及时编制省公司绩效评估报告，每迟（）扣0.5分。
A.1天
B.2天
C.5天
D.10天
