Q19: PP74. Why notD

captain_mas

A recently published report indicates that the salaries of teachers continue to lag far behind other college-educated professionals, because they make an average of nearly $8,000 a year less at the start of their careers and almost $24,000 less a year by the time they reach the age of 50.



A.
other college-educated professionals, because they make an average of nearly $8,000 a year less at the start of their careers and almost $24,000 less

B.
other college-educated professionals, by an average of nearly $8,000 a year at the start of their careers, to almost $24,000

C.
what other college-educated professionals are paid—making an average of nearly $8,000 a year less at the start of their careers and almost $24,000 less

D.
those of other college-educated professionals—by an average of nearly $8,000 a year at the start of their careers to almost $24,000 less

E.
those of other college-educated professionals—by an average of nearly $8,000 a year at the start of their careers, and by almost $24,000

wangliming

lag behind 和D选项最后的less重复

elaineyll

可能有平行结构方面的问题by and by.... 而且注意E选项和原文意思不一样。原文有两个less,在E中均去掉了，不知道是原文逻辑意思不合理还是less用法不合理

jianglxiang

这道题我也选错了，我也选了D，我感觉应该是语意的问题吧

A选项用的就是and 而D选项用的是to

and是一种并列的描述，而to则有了一个方向性

个人理解……

tomchengs

D: "average of xxx to xxx" is awkward. idiom is "an average of..."