A.telephone
B.telegraph
C.telex
D.VHF
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A.calls at
B.has called at
C.call at
D.will call at
A.Calling frequency
B.Distress frequency
C.Urgency frequency
D.Working frequency
A.to be
B.is
C.will be
D.has been
A.at
B.by
C.in
D.on
A.home
B.family
C.China
D.returning
最新試題
Please（）all the lines fore and aft，the vessel is just in her position of the berth now.
（），you can’t finish discharging tomorrow!
There is a（）mine in position 50°N，30°W.
How should the letter O be pronounced when spoken on the radiotelephone?（）
The generators on your rig have shut down，leaving you without navigation lights. Which emergency signal would you transmit over the VHF radio to alert vessels in the area of your predicament? （）
I’d like to know something about the cargo condition at the loading port（）detail.
（）both anchors.
（），the cargo plan is not well done.
One hour before arrival at Elbe 1 light vessel，masters are advised to contact the pilot boat by（）.
I have been instructed that on my voyage（），I shall call at Maderra to pick up some cargo.