()service means a service which is based on polar orbiting satellites which receive and relay distressalerts from satellite EPIRBs and which provides their position .
A: Geostationary satellite
B: Near-polar orbiting satellite
C: synchomizing satellite D.
D: Terrestrial satellite
A: Geostationary satellite
B: Near-polar orbiting satellite
C: synchomizing satellite D.
D: Terrestrial satellite
举一反三
- The low polar orbiting satellite system provides the coverage of （ ） A: Area A4 B: Area Aland A2 C: Area A3 D: Area Al. A2.A3and A4
- 25. The-low polar orbiting satellite system provides the coverage of _ A: sea areas Al and A2 B: sea areas AJ, A2, A3 and A4 C: sea area A3 . D: sea area A4
- 23. The low polar orbiting satellite system provides the coverage of____. A: sea area A4 B: sea areas Al and A2 C: all over the world D: sea areas Al, A2, A3 and A4
- ____Satellite is China’s first independent and civilian high-resolution Stereo Mapping Satellite, which fills a gap of our country’s stereo mapping.
- Which is wrong among the following statements about satellite communication? A: Satellite communication has a large communication distance and a wide coverage range B: It is easy to realize broadcast communication and multiple access communication by using satellite communication C: The advantages of satellite communication are that it is not affected by climate and its bit error rate is very low D: High communication cost and large delay are the shortcomings of satellite communication