Over 5 million shared bikes in China are using-services offered by Beidou Navigation Satellite System（北斗衛星導航系統）.These shared bikes all use Beidou-based positioning chips（定位芯片）.
   The chips have high qualities.They can deal with information correctly and quickly.They feature low power consumption.They provide a better user experience and easier management for the local companies.Now，several new models of shared electric bikes with Beidou-based chips have also started to be produced and put into market.Besides positioning and navigation，the chips will help users and bike companies record user speed and battery condition of an electric bike.The possible crimes during the bike using will also be recorded.
   In fact，years ago，shared bike companies began to use positioning chips which worked well with both GPS and Beidou services.After the Beidou system became fully in use in the summer of 2020，shared bike companies started installing Beidou-based chips on more bikes in more areas.The latest chips which are popular with bike companies are smaller and have more advantages over the old types.
   Since 2000，a total of 59 Beidou satellites have been lifted from the Xichang Satellite Launch Center in Sichuan Province.After the final satellite was lifted in 2020，the system was completed and started providing global services（服務）.Beidou Satellite System is designed and developed by China and it is one of four global navigation networks，along with the United States' GPS，Russia's GLONASS and the European Union's Galileo.
   According to a research in 2022，by the end of 2021，the total value connected with satellite.navigation and positioning services in China was 469 billion yuan，a16.3-percent increase year-on-year.More than 500，000 Chinese people now work at around 14，000 China's companies and organizations doing business connected with Beidou and

other satellite navigation and positioning services.

（1）What's the main idea of Paragraph 2？

C

C

A．The long history of shared bikes.
B．The high qualities of shared bikes.
C．The good points of Beidou-based chips.
D．The new producers of Beidou-based chips.
（2）What does the underlined word"installing"mean in Paragraph 3？

D

D

A．putting away
B．putting off
C．putting out
D．putting in
（3）How does the writer prove the value of navigation and positioning services in Paragraph 5？

B

B

A．By explaining reasons
B．By listing numbers.
C．By comparing conditions.
D．By introducing backgrounds.
（4）What's the best title of the passage？

C

C

A．Service Increases the Sales of the Products
B．Competition Lifts the Quality of the Products
C．Technology Shapes the Future of the Products
D．Users' Needs Drive the Growth of the Products