单项选择题

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

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单项选择题

In a crossing situation，a stand-on vessel which is forced to take action in order to avoid collision with a vessel on her own port side shall，if possible，avoid（）.

A.turning to port
B.turning to starboard
C.decreasing speed
D.increasing speed

单项选择题

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