(来学网)集中式给水的水源水如果只经氯消毒即供饮,则水源水总大肠菌群不应超过
  • A.
    (来学网)10CFU/L
  • B.
    (来学网)100CFU/L
  • C.
    (来学网)1000CFU/L
  • D.
    (来学网)10000CFU/L
  • E.
    (来学网)100000CFU/L