A.pay out
B.make fast
C.shorten
D.hold on
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A.calls
B.called
C.calling
D.call
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
最新試題
The control of distress traffic is the responsibility of（）.
What does the abbreviation VHF stand for?（）
Should that kind of weather（），the two ships would touch each other.
（），the cargo plan is not well done.
How（）the cargo at loading port?
Channel 13 (156.65 MHz)，the designated bridge-to-bridge channel，may NOT be used to（）.
Do you require any further assistance ? My ship is safe now and no assistance is necessary.This VHF communication generally takes place during（）.
（）both anchors.
There is a VHF set（）the front of the wheelhouse.
How should the letter O be pronounced when spoken on the radiotelephone?（）