题目内容

Most current antibiotics are produced by:

A. fungi
B. actinomycetes
C. viruses

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A. β-lactams.
B. Quinolones.
Chloramphenicol.
D. Gentamicin.

A. penicillins
B. quinolones
C. chloramphenicol
D. gentamicin

A. Fluoroquinolones.
B. Carbapenems.
Colistin

Are not critically important antibiotics (CIA) for human medicine.
B. Are rarely used in animals.
C. Do not have a Market Authorization in poultry.