皮皮学，免费搜题
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【单选题】
喹诺酮类药物抗菌机制是A.
抑制敏感菌二氢叶酸合成酶
B.
抑制敏感菌二氢叶酸还原酶
C.
抑制敏感菌DNA螺旋酶
D.
破坏细菌细胞壁
E.
影响细菌细胞膜通透性
拍照语音搜题，微信中搜索"皮皮学"使用
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