A.switch on
B.switch off
C.close
D.open
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A.invisible
B.it is invisible
C.isn't visible
D.unvisible
A.repairing
B.to repair
C.repairs
D.have repaired
A.tide is falling from high water to low water
B.tide is rising from low water to high water
C.tide is reaching to a highest level
D.tide is reaching to a lowest level
A.is stayed
B.is situated
C.is placed
D.is located
A.the radio apparatus fitted on the portside
B.the radio with a portable equipment
C.the radio equipment which is easily movable
D.the portable radio with some apparatus
最新試題
Shipboard Emergency Drills must be carried out at least()on board cargo ship.
A tide is called diurnal when().
()is halfway between the forward and after perpendiculars and is reference point for vessel construction.
Before any loading takes place any signs of the previous cargo should do().
The mean draft of a ship is the draft().
Berthing means bringing a vessel to her berth until().
The helm command PORT TWENTY means().
The force resulting from the earth’s rotation that causes winds to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere is called().
ECDIS must be able to perform all of the following EXCEPT().
Which of the following is not an operation mode of AIS?()