A.good towing ground
B.good holding ground
C.good grabbing ground
D.good dragging ground
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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
A.to right the raft if it capsizes
B.to carry the raft around on deck
C.for crewmen to hang on to
D.to hang the raft for drying
A.more
B.not so much
C.rather
D.not shch
最新試題
A tide is called diurnal when（）.
Which of the following shall not the officers in charge of the navigational watch do?（）
Which wind results from a land mass cooling more quickly at night than an adjacent water area?（）
How long are you prohibited to consume alcohol prior to serving as a member of a watch?（）
According to the relevant regulation, lifeboat should be powered by（）.
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（）.
What is it called when it is possible to ignite the vapour above the oil?（）
The mean draft of a ship is the draft（）.
（）is on the panel of radar.
The loading of the ship must be done in accordance with（）.