prep中比较省略让我有的疑问，请教大牛

我遇到比较，加不加代词总是特别困惑先列出几题。

Thomas Eakins's powerful style and his choices of subject--the advances in modern surgery, the discipline of sport, the strains of individuals in tension with society or even with themselves--was as disturbing to his own time as it is compelling for ours.

(A) was as disturbing to his own time as it is

(B) were as disturbing to his own time as they are

(C) has been as disturbing in his own time as they are

(D) had been as disturbing in his own time as it was

(E) have been as disturbing in his own time as

218.       (28036-!-item-!-188;#058&002747)

Only seven people this century have been killed by the great white shark, the man-eater of the movies—less than those killed by bee stings.

A. movies—less than those

B. movies—fewer than have been

C. movies, which is less than those

D. movies, a number lower than the people

E. movies, fewer than the one

36是老prep的，我选了E,我不明白，这里省略they are不行么？主语一致，比较表语，为什么不能省略？

这道题错了直接导致我218选了E，后来看CD的大牛解释了218E是不可比，那么请问218的B与36又怎么交待呢？

另附上og一题，希望大牛一并解说：

OG11-37

In one of the bloodiest battles of the Civil War, fought at S, M, on Sept 17, 1862, four times as many American s were killed as would later be killed on the beaches of N during D-Day.