A.INMARSATB.IMOC.MSCD.CESAfter successful commissioning……

单项选择题A mobile earth station in the maritime mobile-satellite service,which is located on board ship,is called（）.

A.an LES
B.an SES
C.a ship station
D.a Land Mobile Station

单项选择题Any ship with SES can（）and（）through the Inmarsat satellites when sending a distress alert.

A.enter the system rapidly / wait for rescue
B.have an absolute priority to enter the system / contact with a CES
C.establish contact with the RCC / enter the port
D.enter the system gradually / get the rescue

单项选择题The Network Coordination station for the INMARSAT-A coast stations in the Pacific ocean region is in（）.

A.Yamaguchi, Japan
B.Beijing, China
C.Nakhodka, Russia
D.Perth, Australia

单项选择题The NCS of INMARSAT-A system in the IOR is in（）.

A.Goonhilly, UK
B.Yamaguchi, Japan
C.Perth, Australia
D.Southbury, USA

单项选择题The GMDSS defines four sea area based on the（）.

A.location and capacity of the facilities located on board ships
B.Position and type of a sincere sintion
C.Capacity and location of shore based communication facilities
D.Position and capacity of mobile communication stations