关于比较的问题

hardfish

11. Some psychiatric studies indicate that among distin-
guished artists the rates of manic depression and major
depression are ten to thirteen times as prevalent as in
the population at large.

(A) the rates of manic depression and major depres-
sion are ten to thirteen times as prevalent as in
(B) the rates of manic depression and major depres-
sion are ten to thirteen times more prevalent
than in
(C) the rates of manic depression and major depres-
sion are ten to thirteen times more prevalent
when compared to
(D) manic depression and major depression are ten to
thirteen times as prevalent when compared to
(E) manic depression and major depression are ten
to thirteen times more prevalent than in

Key is E. My question is why not use "than that in ..."。 that 指代 manic depression and major depression。

猫猫头

可是没这个选项呀，省略其实并没有错，只是不大好而已！

justag

...than (manic depression and major depression are) in...

both subject and predicate are emited. In this case, that is not appropriate to refer to "manic depression and major depression" in my point of view.

Hardfish, you may read some posts days ago on this board. I'm sure you'll find them helpful 'coz most of us have the same questions and many of them have been answered quite well already.

hardfish

Justag, 是哪一篇？我没找到。

chenjing2000

To address your question:

Here is noting about omittion. It's about the logic. "The rates of ... are ... prevalent" What do you think when you read this? Apparently, rates cannot be modified by prevalent!. That's the logic behind the answer E.

justag

To choose the right answer, without realizing and noticing the omittion, E is still quite obvious. But to take a better advantage of the real GMAT SC, the issue of omittion is worth being pointed out here. That's for sure.