A.distortion and compression
B.hydraulic and mechanical
C.magnetic and applied torque
D.frictionless and hydraulic
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A.of
B.on
C.at
D.in
A.flashing amber light
B.yellow light with the same characteristics as the sternlight
C.all-round yellow light
D.yellow light with the same characteristics as the masthead light
A.fuel oil
B.sludge
C.oil refuse
D.All of the above
A.Mayday
B.Pan
C.Safety
D.Interco
A.SOS sent three times
B.ten one-second dashes with a four-second interval between them
C.twelve four-second dashes with a one-second interval between them
D.twelve one-second dashes with a short interval between them
最新試題
What is required to launch a boat stowed in a crescent davit?（）
The expression FIRST MAGNITUDE is usually used to refer only to bodies of magnitude（）.
The towing light is a(n)（）.
There is something wrong with our radar．All kinds of objects can’t be clearly（）within the definite range.
The term OIL as used in the Oil Pollution Regulations means（）.
The vessel was drifted off from her（）due to strong wind.
What form of ice is of land origin?（）
The expression DROP ANCHOR means（）.
PAN-PAN repeated three times over the radiotelephone indicates which type of message will follow?（）
In radiotelephone communications，the prefix PAN-PAN indicates that（）.