单项选择题
A.CFU/mL(g)B.MPN/mL(g)C.MPN/102mL(g)D.个/mL(g)
A.CFU/mL(g)B.MPN/mL(g)C.MPN/103mL(g)D.个/mL(g)
A.CFU/mL(g)B.MPN/mL(g)C.MPN/104mL(g)D.个/mL(g)