[单选题]An alarm device inserted between the deaerating tank and the expansion tank can notify the on-watching crew that .

正确答案 ：D

there is something wrong with the engine

[单选题]互见中，一艘从事捕鱼的船舶与其右舷一艘驶帆的船舶相遇致有构成碰撞危险，则________。

正确答案 ：C

帆船应避让从事捕鱼的船舶

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