單項選擇題

At night，if you see a vessel ahead displaying the lights shown you should（）.

A.provide assistance as the vessel is in distress
B.stay clear as the vessel is transferring dangerous cargo
C.stay clear as the vessel is fishing
D.change course to the right as the vessel is crossing your bow

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單項選擇題

All of the following are recognized distress signals under the Navigation 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

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

A.International Code Signal "AA"
B.orange-colored smoke
C.red flares
D.the repeated raising and lowering of outstretched arms

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At night，if you see a vessel ahead displaying the lights shown you should（）.

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

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

At night，if you see a vessel ahead displaying the lights shown you should（）.