Operations which left patients and in need of long periods of discovery time now leave th

问题补充：

Operations which left patients and in need of long periods of discovery time now leave them feeling relaxed and comfortable.

A. exhausted

B. unhealthy

C. upset

D. fearful

答案：

(答案→)A. exhausted

B. unhealthy

C. upset

D. fearful

解析： exhausted指“精疲力竭韵”；unhealthy 指“不健康的”；upset指“苦恼的，不适的”；fearful指、“担心的，可怕的”；其中使本句逻辑上成立的是exhausted；与relaxed构成对比。本句的意思是：以前，病人手术后精疲力竭，需长时间才能恢复，现在手术后的病人却感到既轻松又舒适。

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