A.on
B.at
C.in
D.above
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你可能感興趣的試題
A.Standing by on VHF frequency
B.Coming to VHF frequency
C.VHF frequency. is the best place for you to stay by
D.remaining in frequency. and do not change
A.I am going to change to VHF channel
B.I am certainly going to change to VHF channel
C.Changing to VHF channel
D.VHF channel. has been changed
A.on
B.in
C.at
D.up
最新試題
There is a（）mine in position 50°N，30°W.
The space in Hatch No.4 tweendeck is too（）.
You are making a telephone call ship-to-shore using the VHF-FM service.You can tell that the working channel is busy if you hear（）.
How（）the cargo at loading port?
Should that kind of weather（），the two ships would touch each other.
How should the letter O be pronounced when spoken on the radiotelephone?（）
The expression STAND-BY ENGINE means:（）.
All VHF marine band radios operate in the simplex mode，which means that（）.
Vessels wishing to communicate with the Port Health Officer should do（）on VHF Channel 14.
The weather is often（）in a high-pressure area.