A.is the S.W.L.of the crane
B.are the S.W.L. of the crane
C.the S.W.L. of the crane is
D.the S.W.L. of the crane are
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A.make command of
B.take command of
C.get command of
D.have command of
A.advised
B.to be advised
C.be advised
D.are advised
A.to
B.with
C.by
D.for
A.of
B.for
C.with
D.in
A.repair
B.repairing
C.to repair
D.be repaired
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Fog is likely to occur when there is little difference between the dew point and the（）.
（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.
Which of the following is not an operation mode of AIS?（）
It is dangerous for vessels without the operational radar（）the estuary.
Bales close to the deckhead should be covered to prevent（）.
When the wave period and the apparent rolling period are the same（）.
The company should establish and maintain procedures to control all documents and date which are relevant to（）.
The mean draft of a ship is the draft（）.
The dew point temperature is（）.
Which of the following is not a form of precipitation?（）