A.bollard
B.bitt
C.stem
D.keel
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A.the port of destination
B.the next port of call
C.the port of arrival
D.the last port of call
A.on
B.in
C.with
D.for
A.that had been driven
B.had been driven
C.have been driven
D.which to have been driven
A.cross
B.crosses
C.crossing
D.crossed
A.at
B.for
C.in
D.on
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When the wave period and the apparent rolling period are the same（）.
It is dangerous for vessels without the operational radar（）the estuary.
The circulation around a low pressure center in the Northern Hemisphere is（）.
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
Manoeuvring information can not be obtained from（）.
Which of the following is not a form of precipitation?（）
Fog is likely to occur when there is little difference between the dew point and the（）.
Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.
The company should establish and maintain procedures to control all documents and date which are relevant to（）.
What is it called when it is possible to ignite the vapour above the oil?（）