A.at obscured objects
B.forward submerged targets
C.up exposed targets
D.for unseen objects
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A.to be sailing
B.sailing
C.sail
D.to sail
A.in
B.of
C.on
D.with
A.cargo elevators
B.conveyor belts
C.ramps
D.derricks and winches for cargo handling
A.must
B.ought to
C.have to
D.never
A.in
B.on
C.of
D.at
最新試題
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
Which of the following shall not the officers in charge of the navigational watch do?（）
（）is where the crew eat their meals.
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（）.
Where would you find information about the time of high tide at a specific location on a particular day of the year?（）
What is a CORRECT reply to a pilot’s request, How’s your heading?（）
Which of the following is not an operation mode of AIS?（）
The mean draft of a ship is the draft（）.
（）is on the panel of radar.
Berthing means bringing a vessel to her berth until（）.