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
There is something wrong with our radar．All kinds of objects can’t be clearly（）within the definite range.
The radiotelephone safety message urgently concerned with safety of a person would be prefixed by the word（）.
To predict the actual depth of water using the Tide Tables，the number obtained from the Tide Tables is（）.
There is not（）depth of water around the area centered at the lighthouse.
The towing light is a(n)（）.
What is normally used to pass a mooring line to a dock?（）
In radiotelephone communications，the prefix PAN-PAN indicates that（）.
We have no steel wire．You had better（）us one.
The transmission of messages respecting the dangers specified is free（）cost to the ships concerned.
Which radiotelephone signal indicates receipt of a distress message?（）