A. cost B. disposal C. mercy D. expenditure 参考答案:A 答案解析:[解析] 考查固定搭配。at the cost of“以……为代价”;at me disposal of“由……处置”;at the mercy of“任……摆布”;expenditure不与at搭配
第23题: [单项选择]用腋表测量人的体温,高热的标准是 A. 39.0℃~41℃ B. 38.9℃~39.9℃ C. 39.1℃~40.4℃ D. 39.2℃~40.5℃ E. 39.5℃~40.9℃ 参考答案:A