China developed the BeiDou Satellite Navigation System in order to ________.
A: strengthen national security
B: further develop our economy
C: promote social development
D: do all of the above
A: strengthen national security
B: further develop our economy
C: promote social development
D: do all of the above
举一反三
- Beidou Satellite Navigation system is a global satellite navigation system developed by China, and it is also the _________ mature satellite navigation system. A: first B: second C: third D: fourth
- China's independently developed navigation system is ( ). A: GPS system B: GLONASS system C: Beidou system D: Galileo satellite navigation system
- Beidou satellite navigation system, which is independently developed in China, has been used in China’s high-speed railway.
- Which satellite navigation system is developed by China? A: GPS B: GLONASS C: BDS
- What is the name of the product? A: Beidou Star B: Beidou (Compass) Navigation S atellite System C: Beijing Satellite System