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单项选择题

A.5CFU (15min*直径9cm平皿)B.4CFU (15min*直径9cm平皿)C.5CFU (5mi……

非洁净手术部(室)的空气中的细菌菌落总数为多少是合格的。()

A.5CFU/(15min*直径9cm平皿)
B.4CFU/(15min*直径9cm平皿)
C.5CFU/(5min*直径9cm平皿)
D.4CFU/(5min*直径9cm平皿)