A.are
B.is
C.were
D.was
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A.change，depending on the location of the LCG
B.increase
C.decrease
D.remain constant
A.increase the brilliance of the PPI scope
B.turn off the interference controls on the radar
C.use the maximum available range setting
D.increase the radar signal output
A.take action to cross ahead of the other vessel
B.take action to pass astern of the other vessel
C.maintain course and speed
D.change course and increase speed
A.Deadweight Scale
B.Tide Tables
C.Notices to Mariners
D.Table of Azimuth
A.NAVTEX, COSPAS/SARSAT, EPIRBs and Status Recording-system
B.Inmarsat,COSPAS/SARSAT, EPIRBs and Status Recording-system
C.NAVTEX, Inmarast,EPIRBs and SART
D.Inmarsat, direct Printing Telegraphy
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The company should establish and maintain procedures to control all documents and date which are relevant to（）.
According to the relevant regulation, lifeboat should be powered by（）.
The dew point temperature is（）.
How long are you prohibited to consume alcohol prior to serving as a member of a watch?（）
The helm command PORT TWENTY means（）.
When steering by autopilot,how often should the steering be checked?（）
The circulation around a low pressure center in the Northern Hemisphere is（）.
Before any loading takes place any signs of the previous cargo should do（）.
It is dangerous for vessels without the operational radar（）the estuary.
（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.