单项选择题

Without permission of（）, a ship earth station can not enter the system.

A.ITU
B.IMO
C.INMARSAT ORGANIZATION
D.the nearest CES

点击查看答案&解析

上一题目录下一题

单项选择题

A.the routing agreement for a particular ocean region
B.The communication service he required
C.the positions of his ship and the CESs
D.B and C

单项选择题

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

单项选择题

A.switch operator
B.communication gateway
C.national operator
D.on-scene commande