问题
单项选择题
()is a space system using one or more artificial earth satellites.
A.satellite network
B.Satellite Link
C.INMARSAT
D.Satellite System
答案
参考答案:D
()is a space system using one or more artificial earth satellites.
A.satellite network
B.Satellite Link
C.INMARSAT
D.Satellite System
参考答案:D