A.2 minutes
B.3 minutes
C.4 minutes
D.5 minutes
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最新試題
The control of distress traffic is the responsibility of（）.
（）both anchors.
How（）the cargo at loading port?
If it（）fine tomorrow，we shall start unloading.
One hour before arrival at Elbe 1 light vessel，masters are advised to contact the pilot boat by（）.
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（）.
A call between any two ship stations on an intership working frequency shall have a maximum duration of（）.
There is a VHF set（）the front of the wheelhouse.