The “cure rate”of many diseases increased dramatically after penicillin was ______ by more doctors.

2023-05-26

A.put into practice
B.put into effect
C.put into use
D.put into operation

参考答案:C

本题考查词组辨析。题目意为“随着越来越多的医生使用青霉素,许多疾病的治愈率急剧上升。”A、B选项“实行,实施”,强调将理论付诸实践;C选项“使用,应用”,强调投入使用;D选项“利用,运用”,强调投入运行。这里指的是医生开始在治疗中使用青霉素。