(来学网)指示剂的变色范围PH等于
  • A.
    (来学网)pKin+1
  • B.
    (来学网)pKin-1
  • C.
    (来学网)pKin±1
  • D.
    (来学网)PKin+00.1
  • E.
    (来学网)pKin+0.1