简答题:Statistics show that the average family size increases in in

题目内容:
Statistics show that the average family size increases in inverse ratio to the mother's years of education.
A)统计数字表明,按平均数计算,母亲受教育年限越长,她的家庭人口就越少。
B)统计数字表明,家庭平均人口的增长与母亲受教育的年限成反比。
C)统计数字表明,母亲受教育的时间越长,她的家庭就越大。 
D)统计数字表明,母亲受教育的水平随着她的家庭人口的增多而增高。
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