單項選擇題If a vessel is engaged in fishing according to the definitions in the Rules,it will have ().

A.gear extending from the side or stern
B.gear that restricts maneuverability
C.less than 50 percent trolling lines
D.None of the above


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3.單項選擇題If the circumstances of the case admit,any vessel()in a narrow channel.

A.shall have the liberty to anchor
B.shall avoid anchoring
C.shall moor to a buoy when necessary
D.shall keep anchoring

5.單項選擇題In a crossing situation,the stand-on vessel should normally().

A.take action to cross ahead of the other vessel
B.take action to pass astern of the other vessel
C.maintain course and speed
D.change course and increase speed