A.fuel oil
B.sludge
C.oil refuse
D.All of the above
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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
A.1.5 and greater
B.1.25 and greater
C.1.0 and greater
D.0.5 and greater
A.hold anchor
B.leave anchor
C.let go anchor
D.weigh anchor
A.reduce the length of the cable
B.pay out more anchor cable
C.back the engines
D.swing the rudder several times to work the anchor into the bottom
最新試題
The best method to stop a vessel from dragging anchor in a sand bottom is to（）.
What is normally used to pass a mooring line to a dock?（）
What form of ice is of land origin?（）
What is required to launch a boat stowed in a crescent davit?（）
What is the（）of the turning circle in mavoeuvring?
What are symptom(s) of a ruptured appendix?（）
The radiotelegraph alarm signal is（）.
What is the MOST irritating to the skin?（）
In radiotelephone communications，the prefix PAN-PAN indicates that（）.
The radiotelephone safety message urgently concerned with safety of a person would be prefixed by the word（）.