A.on
B.at
C.in
D.above
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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
Pilot Station，this is Chinese ship Jinsha（）.Over.
I have been instructed that on my voyage（），I shall call at Maderra to pick up some cargo.
Some goods are missing（）terrible weather.
（）your present speed?
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 weather is often（）in a high-pressure area.
（），the cargo plan is not well done.
A call between any two ship stations on an intership working frequency shall have a maximum duration of（）.
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? （）
Vessels wishing to communicate with the Port Health Officer should do（）on VHF Channel 14.