当前学科:船舶动力装置
  • 题目: 单选
    A diesel engine cooling water system with a pH factor of 30 indicates a condition of ().

      A . slight acidity
      B . slight alkalinity
      C . excessive alkalinity
      D . excessive acidity

    答案: <查看本题扣1积分>

    查看答案

    答案不对?请尝试站内搜索