单项选择题
A.kPaB.μWC.radD.mgE.cal
A.1ppmB.3ppmC.5ppmD.10ppmE.15ppm
A.浓度增高B.温度升高C.湿度增高D.湿度降低E.灭菌物品为多孔并能吸收环氧乙烷的