A.calls at
B.has called at
C.call at
D.will call at
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A.Calling frequency
B.Distress frequency
C.Urgency frequency
D.Working frequency
A.to be
B.is
C.will be
D.has been
A.at
B.by
C.in
D.on
A.home
B.family
C.China
D.returning
A.cast
B.to cast of
C.cast off
D.to cast off
最新試題
Some goods are missing（）terrible weather.
The weather is often（）in a high-pressure area.
You are making a telephone call ship-to-shore using the VHF-FM service.You can tell that the working channel is busy if you hear（）.
Pilot Station，this is Chinese ship Jinsha（）.Over.
The control of distress traffic is the responsibility of（）.
（）your present speed?
（），you can’t finish discharging tomorrow!
A call between any two ship stations on an intership working frequency shall have a maximum duration of（）.
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? （）
How（）the cargo at loading port?