Western nations have older and shrinking populations since they entered the 21st century and their()birth rates have also posed problems.
Western nations have older and shrinking populations since they entered the 21st century and their()birth rates have also posed problems.
A.floating
B.fluctuating
C.flowing
D.drifting
正确答案:fluctuating
Tag:大学英语
时间:2024-01-04 10:49:04