A.was breaking
B.broke out
C.would break out
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A.be jettisoned
B.be dropped
C.be dived
D.be abandoned
A.out of
B.away from
C.from away
D.out from
A.stow
B.stowing
C.stowed
D.be stowed
A.frequent
B.so frequent
C.frequent that
D.so frequent that
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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It is dangerous for vessels without the operational radar（）the estuary.
Which of the following shall not the officers in charge of the navigational watch do?（）
Bales close to the deckhead should be covered to prevent（）.
Fog is likely to occur when there is little difference between the dew point and the（）.
Where would you find information about the time of high tide at a specific location on a particular day of the year?（）
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
（）is where the crew eat their meals.
ECDIS must be able to perform all of the following EXCEPT（）.
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