题目内容:
We know that we are getting even older,and that the______(near)a society approximates to zero population growth,the older its population is likely to be.
参考答案:【答案仅供学习,请勿对照自行用药等】
We know that we are getting even older,and that the______(near)a society approximates to zero population growth,the older its population is likely to be.