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

解释里提到此处是句子和句子的比较，请问E选项中改为比较宾语有何不妥？另外，这里的to his own time和in his own time有何区别？

首先楼主。。省略的话是可以补全的，否则就不能省略的。。在这里你说是比较宾语，那么就是说主语和谓语是相同的。。

如果你说E对的话，那么好，我们就说是比较宾语，那么意思就是说 xxx have been as disturbing A  as B.就是说his own time和compelling 比较对不？还原就是xxx have been as disturbing A as(xxx have been disturbing compelling ..明显错误啊。。

若时间不同

即使是主系表结构

通常是不省略的

22.A recent national study of the public schools shows that there are now one microcomputer for every thirty-two pupils, four times as many than there were four years ago.
(A) there are now one microcomputer for every thirty-two pupils, four times as many than there were
(B) there is now one microcomputer for every thirty-two pupils, four times as many than there were
(C) there is now one microcomputer for every thirty-two pupils, four times as many as there were
(D) every thirty-two pupils now have one microcomputer, four times as many than there were
(E) every thirty-two pupils now has one microcomputer, four times as many as
the key:C。there is now one microcomputer for every thirty-two pupils, four times as many as there were four years ago

843.The use of chemical pesticides in this country is equally extensive or more so than ten years ago.
(A) equally extensive or more so than ten years ago
(B) equal to or more extensive than ten years ago
(C) as extensive as ten years ago or more
(D) equal to, if not more, than ten years ago
(E) as extensive as it was ten years ago, if not more so (if the use…is not more extensive than it was ten years ago)
the key:E The use of chemical pesticides in this country is as extensive as it was ten years ago, if not more so

多谢答复！

LS的引用非常说明问题。我原来就想Thomas Eakins这个人肯定是个古代的人，那么原文的比较就是拿过去和现在做比较，但是这里的省略还不是很肯定。再次感谢LS MM的引用！