A.identity
B.identical
C.identify
D.identification
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A.cannot
B.are no allowed
C.have the right
D.should get permission to
A.receive shore-to-ship distress alerting
B.transmit ship-to-shore distress alerting
C.receive message for public correspondence
D.transmit and receive locating signals
A.the radio regulations
B.the technical terms and definitions
C.how to operate the GMDSS SES equipment
D.Maritime Communications
A.only SAR authorities on land
B.all ships in a very large sea area
C.the nearest coast stations and port radios
D.the SAR authorities ashore as well as ships in the vicinity of the casualty
A.countries
B.states
C.names
D.groups
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Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.
Every lifeboat which is fitted with a fixed two-way vhf radiotelephone apparatus with（）which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
As each MSI message will have a unique identity, the printing of messages already received correctly is（）.
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
On-scene communications will normally take place between（）.
Before GMDSS, if the radio officer on board is serious ill,（）.
Radio beacon can be activated（）in case of distress.
SOLAS ships shall be equipped with（）.
The advantage of geostationary satellites is（）.
The frequency（）the safety message will be transmitted shall be included in DSC safety call.