單項(xiàng)選擇題The（）is that search and rescue authorities ashore, as well as shipping in the immediate vicinity of the ship in distress, will be rapidly alerted to a distress incident so they can assist in a coordinated SAR operation with the minimun delay.

A.common communication system
B.distress traffic system
C.basic concept of GMDSS
D.SAR operation procedure


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1.單項(xiàng)選擇題（）communication are intership VHF radio telephone communication.

A.ship-to-shore
B.shore-to –ship
C.bridge-to-bridge

2.單項(xiàng)選擇題From IMO’S point of view, INMARSAT’s most important function is the provision of（）.

A.general radio communication
B.MSI
C.improved distress and safety communication
D.bridge-to-bridge communication

4.單項(xiàng)選擇題The purpose of the GMDSS is to（）safety of life and property at sea all over the world.

A.promote
B.improve
C.guarantee
D.both A and B

5.單項(xiàng)選擇題The first communication satellite was used for the purpose of（）.

A.taking the place of the radio system
B.introducing a new life-saving system
C.saving the vessels in distress
D.improving the communication on land