A.turned off
B.already
C.almost
D.ready
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A.M is not fixed at large angle
B.there is no M at large angles
C.G is not fixed at large angles
D.there is no G at large angles
A.good towing ground
B.good holding ground
C.good grabbing ground
D.good dragging ground
A.breaking the chain reaction
B.smothering the fire
C.cooling the fire
D.coating the fule with a nonflammable surface
A.cooling
B.smothering
C.shielding of radiant heat
D.breaking the chain reaction
A.directly on flames
B.at room temperature
C.in an extremely cold climate
D.None of the above
最新試題
ECDIS must be able to perform all of the following EXCEPT（）.
The mean draft of a ship is the draft（）.
The helm command PORT TWENTY means（）.
In the Northern hemisphere northerly winds may cause temperature（）.
Manoeuvring information can not be obtained from（）.
Berthing means bringing a vessel to her berth until（）.
How long are you prohibited to consume alcohol prior to serving as a member of a watch?（）
A tide is called diurnal when（）.
The circulation around a low pressure center in the Northern Hemisphere is（）.
（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.