电信专业英语期末试卷b

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1、njr>课程名称专业英语试卷卷别A□Bv专业级班级考试方式闭卷V开卷口2007-2008学年第1学期本试卷共八大题（6页），满分100分，考试时间120分钟。请在答题纸上作答，在试卷上作答无效。一、根据英文单词或词组，写出中文意思（本题共15小题，每题1分，共15分》jllQ1.insulator2.conductor3.pulse4.sensor5.manual6.modulate7.nucleus8.oscilloscope9.hardware10.multimedia11.terminalcontrollers

2、12.downlinkfrequencyspectrum13.wirelesstelephone14.powercord15.forwardbias二、根据英文缩写，写出英文完整形式及中文意思《本题共5小题，每题2分，共10分》1.BS2.LAN3.CPU4.IC5.RF三、用连线使A栏与B栏匹配（本题共2大题，每题5分，共10分〉1.ColumnAColumnB(1)receiver(a)themediumusedtotransmitthesignalfromthetransmittertothereceiver.

3、(2)informationsource(b)theunwantedwhichmaycausedistortions(失真)ofsoundinatelephone,oreiTorsintelegraphmessageordata.(3)noise(c)messagewhichmaywrittenwords,orspokenwords,orsomeformofdata.(4)transmitter(d)anequipmentwhichconvertsthemessageintoasignalsuitablefortra

4、nsmissionoverthechannel.(5)channel(e)anequipmentwhichcanchangethereceivedsignalbackintoamessageandpassesthemessageontoitsdestination.2・ColumnA(1)LAN(2)WANColumnB(a)aninternationalstandardsorganization(b)anetworkthatprovidescommunicationsacrosscountryortheentire

5、world.(3)hostcomputer(c)astationwhichisusedtoreceiveandretransmitmicrowavesignals.(4)ISO(d)acomputerwhichislocatedonanetworkandprovidesservicestoothernodesconnectedtothenetwork.(5)Microwaverelay(e)anetworkthatprovidescommunicationswithinspecificbuildingsorfacil

6、ities-迩k躱-•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••Is.竝載s豊专护—梨蹶e划精四、选择适当的词或词组填空（本题共5空，每空1分，共5分〉1.(In,On)thiscase,itispossibletodeterminetheamplitudeofthevoltage.2.Theflowofelectrons(ismadeof,makesup)electriccurrent.3.Thedistort

7、ioniscausedbythechannel(perfection,imperfection).4.ATMdatedfromthebeginningofthe1980s,atthetime,people(weretrying,aretrying)tofindthemostsuitabletechniquefor(toswitch,switching)highbitratechannelatemorethan100Mbit/s..五、选择适当的词填空(本题共5小题，每题1分，共5分〉1."InputAandinput

8、BequalsoutputC”thestatementcanbeexpressedbytheequation•A.AB=CB・A+B=CC・AB=C2.Sometypesofinformationcannoteffectivelywithoutusingsound.A.conveyB.beconveyedC.conveyed3-Thespeec