A.to get the engine ready
B.to respond to the engine
C.to maneuver the engine
D.to change the engine
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A.due
B.because of
C.because
D.since
A.persist
B.persists
C.to persist
D.persisted
A.pay out
B.make fast
C.shorten
D.hold on
A.calls
B.called
C.calling
D.call
A.telephone
B.telegraph
C.telex
D.VHF
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Do you require any further assistance ? My ship is safe now and no assistance is necessary.This VHF communication generally takes place during（）.
What does the abbreviation VHF stand for?（）
（），you can’t finish discharging tomorrow!
My ship（）that port next month.
Some goods are missing（）terrible weather.
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（）.
（）your present speed?
Vessels wishing to communicate with the Port Health Officer should do（）on VHF Channel 14.
The height of a VHF radio antenna is more important than the power output wattage of the radio because（）.