(来学网)WHO推荐杀灭乙肝病毒污染物的消毒剂戊二醛的浓度是
  • A.
    (来学网)0.2%
  • B.
    (来学网)0.5%
  • C.
    (来学网)1.0%
  • D.
    (来学网)2.0%
  • E.
    (来学网)3%
口腔预防医学