A.calls
B.called
C.calling
D.call
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你可能感興趣的試題
A.telephone
B.telegraph
C.telex
D.VHF
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
最新試題
If you know that the vessel you are about to call on the VHF radio maintains a radio watch on both the working and the calling frequencies，which frequency should you call on? （）
I have been instructed that on my voyage（），I shall call at Maderra to pick up some cargo.
There is a（）mine in position 50°N，30°W.
The space in Hatch No.4 tweendeck is too（）.
The present voyage of my ship began at the port of Shanghai after loading 8 000 tons of Cargo on board and ended after discharging the Cargo at the port of Hong Kong，which was（）.
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? （）
（）your present speed?
（）both anchors.
Do you require any further assistance ? My ship is safe now and no assistance is necessary.This VHF communication generally takes place during（）.
One hour before arrival at Elbe 1 light vessel，masters are advised to contact the pilot boat by（）.