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China to help Europe Develop GPS Rival China is to contribute to a new global satellite navigation system being developed by
China to help Europe Develop GPS Rival China is to contribute to a new global satellite navigation system being developed by
admin
2012-09-10
56
问题
China to help Europe Develop GPS Rival
China is to contribute to a new global satellite navigation system being developed by European nations. The Galileo satellite system (51) a more accurate civilian alternative to the Global Positioning System(GPS), operated by the US military. China will provided 230m Euros (USD 259m) in (52) and will cooperate with technical, manufacturing and market development. "China will help Galileo to (53) the major world infrastructure for the growing market for location services, " said Loyola de Palacio, EU transport commissioner.
A new center that will coordinate co-operation was also announced (54) ) the European Commission, the European Space Agency (ESA) and the Chinese Ministry of Science and Technology not long (55) . The China-Europe Global Navigation Satellite System Technical Training and Cooperation Center will be (56) at Beijing University. China has a substantial satellite launch industry and could potentially help the Galileo satellites.
The US has claimed that Galileo could interfere (57) the US ability to downgrade the GPS service during military conflicts. European officials say this is unfounded and counter that US opposition (58) the commercial challenge Galileo would present to GPS. Galileo will be precise to within a meter, while civilian GPS service is accurate to around 10 meters.
The Galileo satellite constellation will (59) 27 operational and three reserve satellites orbiting the Earth at an altitude of 23,600 km. The satellites will be strung along three medium-Earth orbits at 56 degrees inclination to the equator and will provide global coverage. The system should be operational by 2008 and the entire project is expected to (60) around 3.2 billion Euros(USD 3.6 billion).
The European Commission has said Galileo will primarily be used for transportation technology, scientific research, land management and disaster monitoring.
Galileo will provide two signals: a standard civilian one and an encrypted, wide-band signal (61) the Public Regulated Service (PRS). This second signal is designed to withstand localized jamming and will be used by police and military services in Europe. European Commission (62) have said China will not be given access to the PRS.
The first Galileo satellite is scheduled to launch late in 2004, Clocks on board the (63) Will be synchronized through 20 ground sensors stations, two command centers and 15 uplink stations.
Receivers on the ground will use time signals from the satellites to precisely calculate their (64) . A "search and rescue" function will also (65) distress signals be relayed through the constellation of satellites.
选项
A、/
B、the satellite
C、the satellites
D、satellites
答案
B
解析
本题考查上下文前后一致,前文的satellite是单数,此处也应填单数,故选B。
转载请注明原文地址:https://kaotiyun.com/show/iqQd777K
本试题收录于:
职称英语理工类B级题库职称英语分类
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职称英语理工类B级
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