方法采用微量稀释法检测21种抗菌药物的敏感性，运用聚合酶链反应（PCR）技术检测氨基糖苷类修饰酶基因。
METHODS The dilution test was performed to detect the susceptibility to 21 kinds of antimicrobial agents and genotypes of AMEs of 20 E. coli strains were analyzed by polymerase chain reaction(PCR).
PCR法检测氨基糖苷类修饰酶编码基因。
The PCR was performed to determine the genotypes of aminoglycoside-modifying enzymes.
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