A.once
B.whether
C.previous
D.just
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A.the union representative
B.the person aboat whom the entry concerns
C.no one else
D.one other crew member
A.logbook
B.Bell book
C.oil record book
D.compass error book
A.safty straps from the overhead
B.built in seats
C.releasing hooks at each end
D.water stabilizing pockets
A.electricity
B.fule
C.oxygen
D.heat
A.deck logbook
B.official logbook
C.compass record book
D.chronometer error book
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The mean draft of a ship is the draft（）.
Which of the following is not a form of precipitation?（）
The ISM code is part of（）.
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（）.
Which of the following shall not the officers in charge of the navigational watch do?（）
When steering by autopilot,how often should the steering be checked?（）
The company should establish and maintain procedures to control all documents and date which are relevant to（）.
It is dangerous for vessels without the operational radar（）the estuary.
Fog is likely to occur when there is little difference between the dew point and the（）.