第13题:[单选题]The words used by the speaker may stir up unfavorable reactions in the listener ______ interfere with his comprehension. A.who B.as C.which D.what 参考答案:C 题目意为“说话者使用的词语可能会激起听众的不良反应,这会干扰听众的理解。”这句话为定语从句,其中先行词是reactions,在从句中做主语,可用that或者which,且不能省略。