当前学科:海上求生
  • 题目: 单选
    When whistle signals are used for launching lifeboats,one short blast means().

      A . use the float-free method only
      B . lower all boats
      C . raise all boats
      D . drill is over,secure all boat

    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