单项选择题
A.250nmB.220nmC.25nmD.360nmE.300nm
A.灭菌B.除菌C.防腐D.消毒E.过滤除菌
A.0.6%-1.5%B.0.8%-2%C.0.9%-2.5%D.0.5%-2%E.0.2%-0.5%