(来学网)石灰乳用于地面消毒室的适宜浓度为
  • A.
    (来学网)1%~2%
  • B.
    (来学网)3%~4%
  • C.
    (来学网)5%~6%
  • D.
    (来学网)7%~8%
  • E.
    (来学网)10%~20%