In 1941, Charles Fletcher used some of penicillin on his patient who was dying of bacterial infection, and the patient was saved.
A.正确
B.错误
正确答案：正确
In 1941, Charles Fletcher used some of penicillin on his patient who was dying of bacterial infection, and the patient was saved
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What does the word “medicine” mean?It refers to the science or practice of the（）and prevention of disease.
Penicillin was discovered by accident in the summer of 1928.
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