大全679

1.        Temporary-employment agencies benefit not only from the increasing demand for clerical workers but also the higher profits made when highly paid professionals are placed, requests for whom have increased in the recent wave of corporate takeovers.

(A) the higher profits made when highly paid professionals are placed, requests for whom

(B) the higher profits that are made in the placement of highly paid professionals, requests for whom

(C) from the requests for highly paid professionals, who make higher profits for the agencies when placed and whose requests

(D) from highly paid professionals, whose placement makes higher profits for the agencies and whose requests（E）

(E) from the higher profits made in placing highly paid professionals, requests for whom

C不对的原因是不是只有when placed，我觉得from the requests for与from the increasing demand for 正好平行，比E还要好

C. 1. who 前面的逗号不应该有的, 后面的长句是修饰 professionals 的

     2 逻辑意义不对， professionals 自己的 request 不能如何如何，

       应该是 the request for professionas 如何如何, 是 request 变了

基础不好，who的前面为什么不能加逗号

up

加了逗号的 ",wh..."就不再是限定性定语从句，而是非限定性定语从句了。