请教一道题GWD5-Q14，多谢！

jeanblanc

GWD5-Q14:

Even though more money was removed out of stock funds in July as in any month since October 1987, sales of fund shares in July were not as low as an industry trade group had previously estimated.



A.as in any month since October 1987, sales of fund shares in July were not as low as

B.as had been in any other month since October 1987, sales of fund shares in July were not as low as what

C.than there was in any other month since October 1987, sales of fund shares in July were not as low as that which

D.than in any month since October 1987, sales of fund shares in July were not as low as

E.than in any other month since October 1987, sales of fund shares in July were not as low as what
答案选E, 如果D改成than in any other month能选吗？
还有为什么than 后面要省略比较的对象而后半句的as却要加what呢，为什么啊，一直搞不懂哪些情况下比较的对象能省略，一直觉得比较的话都要加上that/those/what之类的，求解惑，多谢！！

jeanblanc

自己顶一下！求NN解惑啊！

daisyの小夢想

sales of fund shares in July were not as low as  an industry trade group had previously estimated.这个比较是不对称的。
如果把比较句省略的部分还原：
Sales of fund shares in July were not as low as what an industry trade group had previously estimated (were low).
虽然看起来比较奇怪，但是要把所有省略的主谓宾还原才知道为什么要省略成这样，这里的what不能省是因为这里是名从作主语，省了what句子就不对称了。

syp1989

还是不大明白 prep里面没看到这类题啊

99qiuqiu

sales of fund shares in July were not as low as had previously estimated 呢