A.That
B.It
C.Which
D.What
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A.Loading
B.Load
C.Lade
D.Laden
A.Help，Help，Help
B.Mayday，Mayday，Mayday
C.Save，Save，Save
D.Rescue，Rescue，Rescue
A.on
B.at
C.in
D.above
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
最新試題
All VHF marine band radios operate in the simplex mode，which means that（）.
I have been instructed that on my voyage（），I shall call at Maderra to pick up some cargo.
The expression STAND-BY ENGINE means:（）.
How should the letter O be pronounced when spoken on the radiotelephone?（）
The height of a VHF radio antenna is more important than the power output wattage of the radio because（）.
Pilot Station，this is Chinese ship Jinsha（）.Over.
If it（）fine tomorrow，we shall start unloading.
Some goods are missing（）terrible weather.
What is meant by veering the anchor chain? （）
The weather is often（）in a high-pressure area.