A.will
B.can
C.shall
D.may
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A.of
B.in
C.on
D.at
A.are
B.is
C.were
D.was
A.change，depending on the location of the LCG
B.increase
C.decrease
D.remain constant
A.increase the brilliance of the PPI scope
B.turn off the interference controls on the radar
C.use the maximum available range setting
D.increase the radar signal output
A.take action to cross ahead of the other vessel
B.take action to pass astern of the other vessel
C.maintain course and speed
D.change course and increase speed
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（）is the act of allocating space to containers on board of a container ship in the order of the discharge ports.
（）is where the crew eat their meals.
In the Northern hemisphere northerly winds may cause temperature（）.
What is it called when it is possible to ignite the vapour above the oil?（）
Which of the following shall not the officers in charge of the navigational watch do?（）
ECDIS must be able to perform all of the following EXCEPT（）.
The helm command PORT TWENTY means（）.
When steering by autopilot,how often should the steering be checked?（）
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
A tide is called diurnal when（）.