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.
133. (31827-!-item-!-188;#058&006534)less与 lag behind 重复
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
关于E选项 为什么不是BY STH AND BY STH 而是 by sth ,and by sth 要是三个by sth 还能理解~~ 求教!!!