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單項選擇題

One of the signals，other than a distress signal，that can be used by a vessel to attract attention is a(n)（）.

A.red star shell
B.searchlight
C.burning barrel
D.orange smoke signal

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單項選擇題

Generally，you can best keep a vessel under steering control when the vessel has（）.

A.headway
B.sternway
C.no way on，with engines stopped
D.no way on，with engines full ahead

單項選擇題

Generally speaking，the most favorable bottom for anchoring is（）.

A.very soft mud
B.rocky
C.a mixture of mud and clay
D.loose sand

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