正确答案: A

disengaging the clutch firstly, then stopping the main engine

题目：When the ship, its main propulsion device equipped with clutch, arrived at the port and finished with the engine, the correct operation should be______.

解析：A

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举一反三的答案和解析：

[单选题]救生艇上应配备可浮桨（）。

1套

[单选题]Which of the processes listed would be the most satisfactory method to use to lower the humidity of the air being circulated by an air conditioning system?

Cooling the air to a point below dew point, then reheating it

[单选题]根据《国际海上避碰规则》，互见中，帆船在航时，应给下列哪种船舶让路？I、从事捕鱼的船舶；II、操纵能力受到限制的船舶；III、失去控制的船舶；IV、限于吃水的船舶

I、II、III

[单选题]船舶卫生水系统一般使用( )作冲洗水。

舷外海水

[单选题]活塞环槽过度磨损后，可采用_______恢复其形状

车削

[单选题]船用抛绳设备每船应具有抛射火箭及抛射药筒各多少支？

4支