标题: for doing and to do 表目的的区别 [打印本页] 作者: 牛仔 时间: 2010-6-2 01:19 标题: for doing and to do 表目的的区别 蓝皮Section 22, 第5题
In large doses, analgesics that work in the brain as antagonists to certain chemicals have caused psychological disturbances in patients, which may limited their potential to relieve severe pain. A. which may limited their potential to relieve B. Which C. Which D. an effect that may limit their potential to relieve E. an effect that may limit the potential of such analgesics for relieving