A. To take her final exam. B. To apologize to the professor. C. To change the date of her exam. D. To schedule her flight. 参考答案:C 答案解析:[听力原文]5-7 W: Dr. Newbury, could I speak with you M: Sure. Come in. W: I need to ask you to
第28题: [单项选择]以下制备注射用水的流程哪个最合理 A. 自来水一滤过一电渗析一蒸馏一离子交换一注射用水 B. 自来水一滤过一离子交换一电渗析一蒸馏一注射用水 C. 自来水一滤过一电渗析一离子交换一蒸馏一注射用水 D. 自来水一离子交换一滤过一电渗析一蒸馏一注射用水 E. 自来水一电渗析一离子交换一滤过一注射用水 参考答案:C