If a seaplane is not used as a means of transpiration on water but is capable of being used so，it shall（）.

单项选择题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

单项选择题If a vessel of special construction cannot fully comply with the Rules，her degree of compliance shall be determined by（）.

A.IMO
B.The owners of the vessel
C.The government
D.The builder

单项选择题If the circumstances admit，（）of small alteration of course and speed shall not be taken to avoid collision.

A.depression
B.oppression
C.succession
D.possession

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

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