2 . Directions: After reading the passage below, fill in each blank with a proper word given in the box. Each word can be used only once. Note that there is one more word than you need.
A. diverse B. dominance C. cracks D. core E. schedule F. application
G. landmark H. promote I. alternative J. echoes K. connectivity |
China's BeiDou System Prepared for Serving Whole World
China launched the last satellite of the BeiDou Navigation Satellite System (BDS) on June 23, marking the completion of the country's homegrown orbital navigation network in a(n) 1 step towards the peaceful exploration of space.
The BeiDou network, a major infrastructure domestically constructed and operated, can better meet the demands of China's national security, economic as well as social development. It can also provide more stable and reliable services, as well as a(n) 2 to the U.S.-owned Global Positioning System(GPS) for global users.
Given the national security concerns due to GPS's 3 ,China has not been the only nation in the world to have striven to develop its own satellite navigation system.Thus one of the BDS's primary principles has been local innovation. The key components as well as 4 technologies and software of the BDS have all been independently developed and manufactured by China itself. Such an independent drive in the field of scientific and technological research and development 5 the very spirit that had been pursued by many Chinese scientists who had once dedicated themselves to the "Two Bombs, One Satellite" project when China had been under nuclear threat by some of the world's major powers.
After 26 years of difficult work, the BDS has now earned a global reputation for its high-accuracy service and various service capabilities. According to the United Nations Office for Outer Space Affairs, the services provided by BeiDou are already helping to 6 social and economic development around the world.
Indeed, the BDS-based solutions have already been successfully adopted in 7 field as land registration, precise agriculture, digital construction and the monitoring and management of vehicles and ships. Also, the BDS-enabled products have already been exported to more than 100 countries, providing users with a variety of choices and an enhance 8 experience.
Thousands of years ago, the Chinese invented the compass, which had made long-range voyages on rough and vast seas possible, helping to give directions in the Age of Discovery.
Today, the BDS network is prepared to promote an even stronger global 9 in this age of globalization, helping countries worldwide to 10 their own courses towards a better future.
