题目内容
肠道致病菌和非致病菌在生化反应上的重要特点是
2021-09-23
A.致病菌和非致病菌都发酵乳糖
B.多数致病菌不发酵乳糖，非致病菌发酵乳糖
C.多数非致病菌不发酵乳糖，致病菌发酵乳糖
D.致病菌和非致病菌都不发酵乳糖
E.以上都不是
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