题目内容
诊断下呼吸道感染时，痰细菌定量培养分离病原菌数需
2022-02-07
A.大于等于103cfu/ml
B.大于等于104cfu/ml
C.大于等于105cfu/ml
D.大于等于106cfu/ml
E.大于等于107cfu/ml
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