单项选择题
Do you require any further assistance ? My ship is safe now and no assistance is necessary.This VHF communication generally takes place during（）.
A.salvage operation
B.cargo discharging
C.bunkering
D.towing operation
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单项选择题
（）both anchors.
A.Drag
B.Dredge
C.Weigh
D.Lie -
单项选择题
The control of distress traffic is the responsibility of（）.
A.the owners
B.the charterers
C.the shipper
D.the vessel in distress or of the station that relays the distress message -
单项选择题
What is meant by veering the anchor chain? （）
A.Bringing the anchor to short stay
B.Heaving in all the chain
C.Locking the windlass to prevent more chain from running out
D.Paying out more chain
