单项选择题

What does EPIRB stand for? （）

A.Emergency Position Indicating Radar Buoy
B.Electronic Pulse Indicating Radiobeacon
C.Emergency Position Indicating Radiobeacon
D.None of the above

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单项选择题

What are the vessel equipment and personnel requirements for GMDSS? （）

A.Two licensed GMDSS radio operators
B.Equipment carriage requirements
C.Distress alerting and response
D.All of the above

单项选择题

What are the conditions，under GMDSS，whereby a ship is NOT allowed to depart from any port? （）

A.The vessel is not capable of performing all required distress and safety functions
B.The vessel is carrying more than the required number of qualified GMDSS radio operators
C.The vessel has a temporary waiver of its radio license and Safety Certificate
D.The vessel is not carrying a GMDSS radio maintainer，but has provided for shoreside maintenance plus duplication of equipment if required

单项选择题

VHF Radio is one of the very important navigational instruments on board，（）messages can be sent.

A.by which
B.through which
C.by that
D.through that