Temporary employment agencies benefit not only from the increasing demand for clerical workersbut also the higher profits made when highly paid professionals are placed, requests for whom have increased in the recent wave of corporate takeovers
D. from highly paid professionals, whose placement makes higher profits for the agencies and whose requests
E. from the higher profits made in placing highly paid professionals, requests for whom
why the answer is E not D? How to analysis the requests for whom in E? 它在句中是什么成分?
谢谢! |