A.Urgency signal
B.Safety signal
C.Distress signal
D.None of the above
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A.a floating wreck
B.a survivor at sea
C.a man who had fallen overboard
D.a drilling rig
A.a message about the safety of navigation will follow
B.a message of an urgent nature about the safety of a ship will follow
C.the sender is in distress and requests immediate assistance
D.you should secure your radiotelephone
A.Safety message
B.Urgency message
C.Distress message
D.Routine message
A.at
B.on
C.in
D.above
最新試題
Geographic range is the maximum distance at which a light may be seen under（）.
Which statement is TRUE with respect to the elasticity of nylon mooring lines?（）.
Which method is used to detect rot in manila lines?（）
Which method of adjusting mooring lines is MOST useful for leaving a boat free to rise and fall with the tide?（）
Good anchorage may be obtained anywhere in this water area，the bottom being generally mud and sand，vessel may have（）.
If passengers are on board when an abandon ship drill is carried out，they should（）.
Three SHORT BLASTS mean（）.
The winch is liable（）worn-out in this way.
I would be very much（）if you could arrange for a radio technician to come on board as soon as possible for my radar repair.
I hope you don’t mind（）the radar for us in a short time.