391.In large doses, analgesics that work in the brain as antagonists to certain chemicals have caused psychological disturbances in patients, which may limit their potential to relieve severe pain.
(A) which may limit their potential to relieve
(B) which may limit their potential for relieving
(C) which may limit such analgesics’ potential to relieve
(D) an effect that may limit their potential to relieve(E)
(E) an effect that may limit the potential of such analgesics for relieving
主要还是DE的区别;
1.D中their指代不清,但是语法不是说代词优先指代主要的吗、这里问什么不适用了
2.文中主语讲述的 analgesics就是有定语从句来限定的,再出现such analgesics 不是太繁琐了吗、不够简洁呀。
请指正,谢谢! |