OG11 Verbal 92

132. According to a study by the Carnegie Foundation for the Advancement of Teaching, companies in the United States are providing job training and general education for nearly eight million people, about （equivalent to the enrollment of the nation's four-year colleges and universities.）
(A) equivalent to the enrollment of
(B) the equivalent of those enrolled in
(C) equal to those who are enrolled in
(D) as many as the enrollment of
(E) as many as are enrolled in

正确答案E。答案中as many as are...为什么不把主语（people或者those）补充出来呢？are可以省略不？

a) enrollment不能和people比较。。用equivalent to the people enrolled in..更合适

b) the不对

c) equal不对，who are多余

d) enrollment不能和people比较

e) 原形是　as many as the people　who are enrolled in.省略了the people和who

OG11-37

In one of the bloodiest battles of the Civil War, fought at Sharpsburg, Maryland, on September 17, 1862, four times as many Americans were killed as would later be killed on the beaches of Normandy during D-Day.

(A)
                    Americans were killed as

(B)  Americans were killed than

(C)  Americans were killed than those who

(D)
                    more Americans were killed as there

(E)  more Americans were killed as those who

这里也是省略了those who

哪位nn知道为什么可以这样省略？