A.of
B.on
C.in
D.at
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A.When
B.Which
C.That
D.What
A.will
B.shall
C.can
D.may
A.will
B.can
C.shall
D.may
A.of
B.in
C.on
D.at
A.are
B.is
C.were
D.was
最新試題
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
（）is where the crew eat their meals.
Which of the following is not a form of precipitation?（）
Berthing means bringing a vessel to her berth until（）.
How long are you prohibited to consume alcohol prior to serving as a member of a watch?（）
The helm command PORT TWENTY means（）.
Which of the following is not an operation mode of AIS?（）
Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.
Full details of all lights and fog signals are shown on（）.
It is dangerous for vessels without the operational radar（）the estuary.