A.near
B.short
C.close
D.small
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A.the port of destination
B.the next port of call
C.the port of arrival
D.the last port of call
A.VHF communications are basically line of sight
B.the air is more dense the higher you go
C.salt water is a poor conductor of sound
D.sea water absorbs the radiated energy
A.Mayday，Mayday，Mayday
B.Pan，Pan，Pan
C.Security，Security，Security
D.Lights out，Lights out，Lights out
A.to get the engine ready
B.to respond to the engine
C.to maneuver the engine
D.to change the engine
A.due
B.because of
C.because
D.since
最新試題
What does the abbreviation VHF stand for?（）
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（）.
I am ready（）tow line.
Do you require any further assistance ? My ship is safe now and no assistance is necessary.This VHF communication generally takes place during（）.
（）both anchors.
There is a（）mine in position 50°N，30°W.
（），you can’t finish discharging tomorrow!
The expression STAND-BY ENGINE means:（）.
All VHF marine band radios operate in the simplex mode，which means that（）.
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? （）