当前学科:电厂水化验员考试
  • 题目: 单选
    pN电极受到污染后,先用()盐酸浸泡15~20min,然后用水冲洗干净,再浸泡在C.氯化钠溶液中活化。

      A . 5%,0.1mol/L;
      B . 10%,0.1mol/L;
      C . 5%,0.01mol/L;
      D . 10%,0.01mol/L。

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