题目内容

关于条件致病菌的叙述,正确的是:

A. 感染的条件是细菌毒力增强
B. 感染的常见诱因是滥用抗生素
C. 均由正常菌群在特殊条件下演变而成
D. 感染的原因是细菌发生耐药性变异
E. 只有在机体免疫功能降低时感染机体

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