A.ofB.onC.toD.forGet everything ready（）mooring．……

单项选择题Finally，when your ship is alongside，don’t forget（）.

A.having rat guards properly mounted on your moorings
B.to have rat guards properly mounted on your moorings
C.to have rat guards properly mounting at your moorings
D.having rat guards proper mounted on your moorings

单项选择题An ocean towing bridle whose legs are of equal length，but too short，may（）.

A.fail to provide spring in the hawser
B.cause unequal distribution of the load to one leg
C.cause the bridle legs to jump clear of the chocks or fairleads
D.None of the above

单项选择题A sail plan，including the vessel’s itinerary，name，number，and persons aboard，should be filed with（）

A.the FAA
B.MSA
C.the Customs
D.a responsible person

单项选择题A gas-free certificate would usually be issued by a(n)（）.

A.ABS marine surveyor
B.certified marine chemist
C.port engineer
D.Coast Guard marine inspector

单项选择题Which vessel when anchored at night，would not be required to show anchor lights? （）

A.A vessel engaged in underwater operations
B.A vessel engaged in mine clearance
C.A vessel engaged on pilotage duty
D.A vessel engaged in survey operations