题目内容
(请给出正确答案)
[单选题]
The Inmarsat satellites are positioned in a/an__, 35, 700 km over the major regions()
A.polar orbit
B.geostationary orbit
C.LEO
D.MEO
答案
B、geostationary orbit
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A.polar orbit
B.geostationary orbit
C.LEO
D.MEO
B、geostationary orbit
A.SES
B.CES
C.NOC
D.NCS
A.Inmarsat Aeronautical and Maritime Search and Rescue Manual
B.Inmarsat and Mobile Search and Rescue Manual
C.International Aeronautical and Maritime Search and Rescue Manual
D.International Air and Maritime Search and Rescue Manual
A.the whole world
B.all NAVAREAs
C.areas from Al to A4
D.four INMARSAT ocean regions
A.②
B.②③
C.①③
D.①②③
A.A NAVTEX
B.An EGC receiver
C.An MF/HF radio
D.A VHF R/T receiver
A.①②③④⑥
B.①②④⑥
C.②⑥
D.①④
A.Inmarsat system
B.GPS
C.SARSAT
D.VHF/HF/MF