單項選擇題

All of the following are distress signals EXCEPT（）.

A.the continuous sounding of any fog signal apparatus
B.giving five or more short and rapid blasts of the whistle
C.firing a gun at intervals of about a minute
D.a barrel with burning oil in it，on deck

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單項選擇題

All of the following are distress signals under the Rules EXCEPT（）.

A.a green star signal
B.orange-colored smoke
C.red flares
D.the repeated raising and lowering of outstretched arms

單項選擇題

What is NOT a distress signal?（）.

A.Red flares or red rockets
B.Continuous sounding of fog signaling apparatus
C.International Code Flags November and Charlie
D.Basket hanging in the rigging

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All of the following are distress signals EXCEPT（）.

你可能感興趣的試題

All of the following are distress signals under the Rules EXCEPT（）.

What is NOT a distress signal?（）.

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