A.on
B.at
C.in
D.above
您可能感興趣的試卷
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 drifting mine（）in position 21 degrees 31 minutes North 124 degrees 20 minutes East.
All VHF marine band radios operate in the simplex mode，which means that（）.
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? （）
Please（）all the lines fore and aft，the vessel is just in her position of the berth now.
（）both anchors.
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（）.
A call between any two ship stations on an intership working frequency shall have a maximum duration of（）.
The space in Hatch No.4 tweendeck is too（）.
One hour before arrival at Elbe 1 light vessel，masters are advised to contact the pilot boat by（）.
Channel 13 (156.65 MHz)，the designated bridge-to-bridge channel，may NOT be used to（）.