The pilot said he（）our vessel directly to berth.

单项选择题Mooring lines both（）were let go.

A.for and aft
B.from and aft
C.fore and aft
D.all and aft

单项选择题Your（）is 175°from the lighthouse.

A.bearing
B.position
C.location
D.place

单项选择题To become an officer on board, you must obtain（）.

A.an officer's license
B.an officer's promotion
C.an officer's statement
D.a seaman's book

单项选择题In a weather report “GMT” stands for（）.

A.Greenwich Mean Time
B.Gross Mean Time
C.Great Mean Time
D.Gross Metric Ton

单项选择题It is danger for vessels without the use of（）to approach the estuary in such poor visibility.

A.Loran C
B.Direction Finder
C.Gyro- compass
D.Radar