A.quick and good
B.convenient and certain
C.easily and simply
D.important and difficult
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A.living standards
B.survival condition
C.chance of survival
D.technical specification
A.they all have different limitations with respect to coverage
B.they all have different limitations in the technology they use
C.different systems apply to different ships
D.all of above
A.Inmarsat-A
B.Inmarsat-B
C.Inmarsat-C
D.Inmarsat-F
A.Search and rescue authorities ashore will rapidly received an distress alert and acted upon
B.SAR units will be rapidly alerted to a distress incident and assist in a coordinated SAR operation
C.Ships navigating in the immediate vicinity of the ship in distress will rapidly alerted to the alert and give their help accordingly
D.The RCC will rapidly alerted to a distress alert through satellite and terrestrial communication techniques and conducted a rescue operation immediately
A.no matter where they are and what time it is
B.at scheduled time and in major ocean regions
C.at fixed time and position
D.when they get permission
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The advantage of geostationary satellites is（）.
At least two two-way VHF radiotelephone apparatus shall be provided on every cargo ship of（）tons gross tonnage and upwards but less than 500 tons gross tonnage.
Before GMDSS, if the radio officer on board is serious ill,（）.
As each MSI message will have a unique identity, the printing of messages already received correctly is（）.
We consider（）send a helicopter with medical facilities to the distress area.
Stations in the United States of America are grouped by states arranged in the alphabetical order of their（）.
Particular care should be（）in selecting CESs in areas where Ocean Regions overlap.
All coast radio stations（）DSC installed for VHF and HF.
Please use（）for（）.
SOLAS ships shall be equipped with（）.