(来学网)自动冲洗,定影液pH的正常范围是
  • A.
    (来学网)2.0~2.5
  • B.
    (来学网)3.0~3.5
  • C.
    (来学网)4.0~4.5
  • D.
    (来学网)5.0~5.5
  • E.
    (来学网)6.0~6.5