A.have
B.have been
C.has been
D.has
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A.in
B.on
C.from
D.at
A.must
B.have to
C.must be
A.come in
B.come on
C.come
A.late
B.latest
C.last
A.well
B.well is
C.will be
D.shall
最新試題
When steering by autopilot,how often should the steering be checked?（）
（）is the act of allocating space to containers on board of a container ship in the order of the discharge ports.
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
Full details of all lights and fog signals are shown on（）.
The ISM code is part of（）.
Before any loading takes place any signs of the previous cargo should do（）.
Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.
What is it called when it is possible to ignite the vapour above the oil?（）
Which of the following is not an operation mode of AIS?（）
A tide is called diurnal when（）.