当前学科:船舶动力装置
  • 题目: 单选
    In the four-stroke engine, it takes () to make one power stroke.

      A . one propulsion
      B . two propulsions
      C . two revolutions
      D . one revolutio

    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


推荐知识点: