A.change course twenty degrees to the left
B.put the rudder left twenty degrees
C.put the rudder hard left for the first twenty degrees of swing
D.put the rudder left twenty degrees and then ease back as the vessel starts swinging
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A.counterclockwise
B.variable
C.clockwise
D.anticyclonic
A.within two hours
B.within three hours
C.within four hours
D.within five hours
A.to get
B.to approach
C.to proceed
D.to close
A.damage by dripping sweat
B.damage by odor contamination
C.from striking structure
D.from steel rusty
A.pressure gradient
B.Coriolis effect
C.aurora borealis
D.ballistic deflection
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（）is where the crew eat their meals.
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
The circulation around a low pressure center in the Northern Hemisphere is（）.
The loading of the ship must be done in accordance with（）.
Which of the following is not a form of precipitation?（）
Shipboard Emergency Drills must be carried out at least（）on board cargo ship.
How long are you prohibited to consume alcohol prior to serving as a member of a watch?（）
ECDIS must be able to perform all of the following EXCEPT（）.
A tide is called diurnal when（）.
In the Northern hemisphere northerly winds may cause temperature（）.