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
（），the cargo plan is not well done.
（）your present speed?
There is a（）mine in position 50°N，30°W.
Should that kind of weather（），the two ships would touch each other.
Some goods are missing（）terrible weather.
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’d like to know something about the cargo condition at the loading port（）detail.
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 have been instructed that on my voyage（），I shall call at Maderra to pick up some cargo.
What does the abbreviation VHF stand for?（）