The“curerate”ofmanydiseasesincreaseddramaticallyafterpenicillinwas______bymoredoctors.
A.put into practice B.put into effect C.put into use D.put into operation正确答案C
The“curerate”ofmanydiseasesincreaseddramaticallyafterpenicillinwas______bymoredoctors.
A.put into practice B.put into effect C.put into use D.put into operation正确答案C