When fertility rates are at or below two, what does this tend to indicate?
A、Thepopulationtendstobeincreasing.
B、Mothersarereplacingthemselvesinthenextgenerationwithason.
C、Thepopulationtendstobestableordeclining.
D、Mothersarereplacingthemselvesinthenextgenerationwithadaughter.
发布时间:2024-12-16 16:06:56