A.keeping a close watch and lookout
B.taking a radar range and bearing
C.observing a radar target and listening to signals
D.keeping a well clear caution
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A.from
B.on
C.in
D.of
A.a continuous ringing for 10 seconds
B.one short ring followed by one long ring
C.two long rings of at least 20 seconds
D.a continuous ringing until the fire is extinguished
A.gives up
B.gives away
C.gives in
D.gives off
A.the chief engineer
B.the person about whom the entry concerns
C.one other crew member
D.no other signature is required
A.base
B.under part
C.bottom
D.down place
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It is dangerous for vessels without the operational radar（）the estuary.
Bales close to the deckhead should be covered to prevent（）.
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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.
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Which wind results from a land mass cooling more quickly at night than an adjacent water area?（）
Fog is likely to occur when there is little difference between the dew point and the（）.
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Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
The ISM code is part of（）.