单项选择题
The GMDSS must combine all various subsystems, because（）.
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
相关考题
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单项选择题
Which Inmarsat system applies store-and-forward messaging?（）
A.Inmarsat-A
B.Inmarsat-B
C.Inmarsat-C
D.Inmarsat-F -
单项选择题
The basic concept of GMDSS is（）.
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 -
单项选择题
SOLAS vessels should be able to communicate with a shore station（）.
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
