单项选择题

A.0.22μm,ATCC19146挑战水平≥107CFU/cm2
B.0.45μm,ATCC19146挑战水平≥104CFU/cm2
C.0.45μm,ATCC14756挑战水平≥107CFU/cm2,无ATCC19146挑战报告
D.0.22μm,ATCC19146挑战水平≥104CFU/cm2