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Which of the following is NOT a way that a bacterium can acquire antibiotic resistance? ( )

Acquiring resistance gene from its host’s cells
B. On its own through evolution
C. From its parent cell
D. Scavenging resistance genes from the environment
E. By changing target structure

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Which of the following combinations would most likely contribute to the development of a superinfection? ( )

A. long-term use of narrow-spectrum antimicrobials
B. long-term use of broad-spectrum antimicrobials
C. short-term use of narrow-spectrum antimicrobials
D. short-term use of broad-spectrum antimicrobials
E. rational use under the guidance.

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Which of the following does not bind to the 50S ribosomal subunit? ( )

A. tetracyclines
B. lincosamides
C. macrolides
D. chloramphenicol
E. Vancomycin

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Which of the following antimicrobials inhibits the activity of DNA gyrase? ( )

A. polymyxin B
B. clindamycin
C. nalidixic acid
D. rifampin
E. Penicllin G

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Which of the following is not an aminoglycoside antibiotic? ( )

A. Neomycin
B. Stretomycin
Cephalosporin
D. Kanamycin
E. Netilmicin

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Which of the following is NOT a way that a bacterium can acquire antibiotic resistance? ( )

Acquiring resistance gene from its host’s cells B. On its own through evolution C. From its parent cell D. Scavenging resistance genes from the environment E. By changing target structure

Which of the following combinations would most likely contribute to the development of a superinfection? ( )

Which of the following does not bind to the 50S ribosomal subunit? ( )

Which of the following antimicrobials inhibits the activity of DNA gyrase? ( )

Which of the following is not an aminoglycoside antibiotic? ( )

Acquiring resistance gene from its host’s cells
B. On its own through evolution
C. From its parent cell
D. Scavenging resistance genes from the environment
E. By changing target structure