What does the author imply about penicillin? A. It is an invaluable medical supply. B. Mold combines with bacteria to make it. C. Some people are not affected by it. D. Doctors seldom use
What does the author imply about penicillin?
A. It is an invaluable medical supply.
B. Mold combines with bacteria to make it.
C. Some people are not affected by it.
D. Doctors seldom use it nowadays.