题目内容
【题目】The doctor refused to use traditional Chinese herbal medicine, __________ he was not sure about.
A. whose side effects B. the side effects of whose
C. of which side effects D. side effects of which
【答案】A
【解析】
考查定语从句
句意:医生拒绝使用传统中药,他对它的副作用不太清楚。中药是先行词,和副作用是所属关系,表示…的用whose 或of which the+名词。故选A。
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