第19题: [单项选择]Living in the central Australian desert has its problems, ______ obtaining water is not the least. A. of which B. for what C. as D. whose 参考答案:A 答案解析:句子的后半部分是带介词的非限定性定语从句,用来对主句作附加说明,which的先行词是problems。whose作关系代词引导从句时,只能作定语,所以用在此句是不对的。如:It was a meeti
第20题: [单项选择]阿托品类药物禁用于下列哪种疾病 A. 虹膜睫状体炎 B. 胃肠道绞痛 C. 青光眼 D. 盗汗 E. 感染中毒性休克 参考答案:C