(来学网)我国2001.年颁布的生活饮用水卫生规范中规定pH值的范围为
  • A.
    (来学网)5.5~7.5
  • B.
    (来学网)6.5~8.5
  • C.
    (来学网)6.O~8.0
  • D.
    (来学网)4.5~8.5
  • E.
    (来学网)7.5~9.5