單項選擇題

In the International Code of Signals，the code signal meaning I require immediate assistance is（）.

A.AE
B.CB
C.DX
D.CP

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單項選擇題

In order to pay out or slack a mooring line which is under strain，you should（）.

A.sluice the line
B.surge the line
C.stopper the line
D.slip the line

單項選擇題

In order to maintain a safe speed at all times，any necessary alterations of speed must（）.

A.be instantly put on
B.be instant put into use
C.be instantly put into effect
D.be put immediately

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