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
Tripping defects in anchors frequently occur in（）.
The term OIL as used in the Oil Pollution Regulations means（）.
The radiotelegraph alarm signal is（）.
What is the（）of the turning circle in mavoeuvring?
What is the MOST irritating to the skin?（）
Which is NOT a distress signal?（）
There is something wrong with our radar．All kinds of objects can’t be clearly（）within the definite range.
The best method to stop a vessel from dragging anchor in a sand bottom is to（）.
The use of the danger signal（）.
The radiotelephone safety message urgently concerned with safety of a person would be prefixed by the word（）.