It is reported that no problems have been discovered in milk products such as Yili, Sanlu and Mengniu, ________ proves newly-produced liquid milk safe. A. that B. what C. which D. where 答案:C 解析: 考查定语从句,which引导定语从句指代前面的句子,并且在定语从句中做主语。辨字组词。攘(_______) 监(_______) 锁(_______) 粘(_______) 歉(_______) 嚷(_______) 槛(_______) 销(_______) 沾(_______) 廉(_______)