69. The satellite systems of GMDSS comprise ______.
举一反三
- The followings are used in the GMDSS except _________. A: the Inmarsat system B: VHF， MF and HF DSC systems C: the Cospas-Sarsat system D: AIS systems
- In well-known Satellite Navigation Systems, besides China’s BDS, there are the US GPS, European GLONASS and Russian GALILEO.
- To use RNP navigation, the aircraft must have at least two flight management systems and two satellite navigation systems.
- Which of the following systems is the global navigation satellite system developed by China? A: GPS B: GLONASS C: GALILEO D: BDS
- In well-known Satellite Navigation Systems, besides China’s BDS, there are the US GPS, European GLONASS and Russian GALILEO. A: 正确 B: 错误