250-106

autumn_leaves

106. 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

又有愚蠢问题了,D选项中的their从道理上来说有指代不清吗?

代词不是优先指代主语吗?虽然读起来感觉是有歧义.请解惑!

joe11

D. their 有指代不清的嫌疑，patients vs. analgesics

You may find the following link useful.

http://forum.chasedream.com/dispbbs.asp?BoardID=23&ID=27505

Meanwhile, in order to help others search for existing posts, please modify your title to 补充250题-106

autumn_leaves

谢谢版主,收到