首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
It is now almost two years since the European Union decided to go ahead with plans to launch a satellite-navigation network to r
It is now almost two years since the European Union decided to go ahead with plans to launch a satellite-navigation network to r
admin
2009-09-12
85
问题
It is now almost two years since the European Union decided to go ahead with plans to launch a satellite-navigation network to rival America’s existing Global Positioning System (GPS). For much of this time, Galileo, the European system, met with strong opposition from America. However, a round of talks last November seems to have ease American concerns. The final details remained to be negotiated in talks, but the outlook for an agreement was good.
The core of the disagreement between the EU and America was whether the signals from the two competing systems might interfere with one another. More specifically, the Americans wanted the ability to jam Galileo without rendering GPS signals ineffective. The agreement reached in November was the first step in this direction. In return for the modification of Galileo’s signals, the Americans agreed to give Europe technical assistance in developing Galileo, and to make sure that the third generation of GPS, to be carried out in 2012, will conform to Galileo’s standards. This will aid the interoperability (互用性)of the two systems, which is a commercial goal of both sides. It will also, in principle, give the Europeans the ability to jam the American signals in the event of a crisis in which the two sides’ interests differ.
There is a bewildering array Of different sorts of signals involved in each network. GPS currently has two, a civilian channel known as C/A and a military one, Y-channel. Plans for an additional military channel, called M-code, are in the works. Galileo will debut (初次公开) with five different signals: one freely available to all; a commercial service which is more precise; a "safety-of-life" service that can be used for critical applications; a "public regulated service" (PRS) which will be used by the EU’s governments; and a fifth service that combines positioning information with a distress beacon, which could be used by ships at sea. The negotiations in November resolved a conflict between America’s M-code and the European PRS. What remains is to harmonize Galileo’s free signal with the M-code.
Both systems rely on signals precisely timed from atomic clocks carried by the satellites. A user looks at the time on at least four satellites, and triangulates (作三角测量)between them to find his position. Differences in the details of the different signals are what make the fees of applications. Some are more precise than others, and they also have different levels of encryption, to prevent unauthorized users from accessing them.
选项
A、EU and US are always having disagreements on almost everything.
B、US becomes an enemy of EU because of their satellite network.
C、The talks between EU and US have resulted in complete agreement.
D、Even though disagreement still exists, agreement can be expected.
答案
D
解析
由题干中的the first paragraph定位到原文首段。[精析] 原文首段最后一句but the outlook for an agreement was good(但是达成一致的前景乐观)用强转折词but强调协议的前景乐观,也即达成协议有望之意。故D)“虽然分歧依然存在,但达成一致仍可期待”正确。[排除干扰] A)“欧盟和美国总是几乎在所有事情上存在分歧”观点扩大化,原文只提及在卫星方面的分歧;原文只是提及两者to rival(竞争),并未提及两者成为enemy,故排除B);由原文The final details remained to be negotiated in talks(最终细节还有待讨论)可推知C)“欧盟和美国之间的谈判已经达成了完全一致”错误,也排除。
转载请注明原文地址:https://kaotiyun.com/show/6X37777K
0
大学英语四级
相关试题推荐
A、Alargesumofmoney.B、Abarbecuedinner.C、Anhonorandaprize.D、Acertificate.C由原文可知,网球队和足球队的两名最有价值的球员不仅会赢得荣誉,而且还会得到运动中心
A、Atleast90%certaintheglobalwarmingwilloccur.B、Therewillbeabout2millionmorecasesofkidneystones.C、Therewill
A、Yourbodywillexcretemoresalt.B、Theurinevolumewillbehigher.C、Theexcesswaterwillcomeout.D、Yoururinewillbecom
A、Theymeetforthefirsttimeontheweddingday.B、Theymeetforthefirsttimeintheintroductionmeeting.C、Theymeetfort
A、Ago-between.B、Amarriedlady.C、Arelative.D、Aneighbour.A短文中提及印度的例子时提到,媒人通常是一位已婚女士,如果她知道哪家的小伙子希望结婚,她就会找上门承诺为他找一个合适的新娘。由此可
A、Tohelpnewstudentsmakenewfriends.B、Toreceiveawarmwelcome.C、Togetnewstudentstobefamiliarwiththeircourses.D
A、PromotingallkindsofAmericanhand-madespecialties.B、Strengtheningcooperationwithforeigngovernments.C、Conductingtrad
Beinginaclassroomfullof"thebestandbrightest"studentsmaynothelpfringeones,accordingtonewresearchthat【C1】_____
Beinginaclassroomfullof"thebestandbrightest"studentsmaynothelpfringeones,accordingtonewresearchthat【C1】_____
A、Cookingfoodsforthewholefamily.B、Helpingchildrenstudy.C、Payingthebillseverymonth.D、Makingalivingforthewhole
随机试题
边区专员公署是边区政府的()
下列词语中加点的字,读音相同的一项是
A.国家药品监督管理部门B.省级药品监督管理部门C.市级药品监督管理部门D.县级药品监督管理部门境内第二类医疗器械由哪个部门审批核发医疗器械注册证()。
当满足下列()条件时,变压器应装设纵联差动保护。
某公司正考虑建设一个新项目。根据市场调查和财务部门测算,项目周期为5年,项目现金流量已估算完毕,公司选择的贴现率为10%,具体数据见项目现金流量表及现值系数表。该公司选择的贴现率应是下列中的()。
甲、乙、丙、丁设立一个有限合伙企业,其中甲、乙为普通合伙人,丙、丁为有限合伙人。1年后,甲转为有限合伙人,同时丙转为普通合伙人。合伙企业设立之初,企业欠银行50万元,该债务直至合伙企业被宣告破产仍未偿还。下列关于该50万元债务清偿责任的表述中,符合合伙企业
下列事项属于会计政策变更的有()。
BT
Inmostaspectsofmedievallife,theclosedcorporationprevailed.Butcomparedtomodernlife,themedievalurbanfamilywasa
LinguisticresearchershavegraduallycometounderstandhowandwhysomanyteenagerssoundlikeDizzeeRascal,arapperfromB
最新回复
(
0
)