请教11OG的一道语法题

92. 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. 

D. as many as the enrollment of 

E. as many as are enrolled in

选择Ｅ，OG said that "the number of people in job training should be compared to the number of  people in colleges,but the original sentence mistakenly compares people to enrollment"，可是我还是不是特别清楚为什么一定要用are enrolled in，而不用the enrollment ，the enrollment 指的不就是people吗？？？如果选E的话，are enrolled in 前面不用加个people吗？

按照ＧＡＭＴ关于比较的原则，比较的对象必须对等，也就是说只能是人和人比，物和物比。此处人: people 不能和抽象名词 enrollment 形成比较结构。

至于 are enrolled in 前面是否要加个people,这里是不用的，OG里 as..as 的後一个as 是可以做代词指代前面一个比较对象的。请看下面的例子：

3#  as...as 结构中有一种特殊结构是在第二个as 做代词的情况下，此时比较的前后都是完整的句子。

主语比较_主谓_as做代词_as..as
187. 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
Choice A, the best answer, is the only option that accurately expresses the comparison by using the idiomatic form as many... as. In B and C, as many ... than is unidiomatic, and in C and E, those who is a wordy intrusion. In D and E, more is redundant because the phrase four times as many in the original sentence conveys the idea of more.

主语比较_主谓_as做代词_as..as
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
The phrases equivalent to in A, the equivalent of in B, and equal to in C have too broad a range of meanings to be used precisely here: that is, they can suggest more than merely numerical equality. Also, as quantitative expressions, equiva?lent and equal often modify nouns referring to uncountable things, as in "an equivalent amount of resistance" or "a volume of water equal to Lake Michigan." To establish numerical comparability between groups with countable members, the phrase as many as is preferable. Choice D, however, uses this phrase improperly in comparing eight million people to enrollment, not to other people. The comparison in E, the best choice, is logical because people is understood as the subject of are enrolled.

回答好详细啊~~真是十分感谢~~

菜鸟一个　让大侠费心啦～～～～

请教一下这个关于比较的句子：

In fact，the only countries that actually have such laws are farther from the equator than is the continental United States.
    

可不可以帮忙分析一下，特别是画粗线的部分，句子意思我能明白，但是句子结构我没有搞清楚，is the continental United States是倒装么？

多谢了