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1、20-20学年第j_学期期丞考试《专业英语》试卷（A卷）答案1.Semiconductor半导体16.Insulator绝缘体2.Amplitude幅度、振幅17.Simulation模拟、仿真3.Transistor晶体管1&Pulse脉冲4.Backplane背板19.Sensor传感器5.Protocol协议20.squarewave方波6.Bandwidth带宽21.Modulate调制7.Coaxial共轴、同轴22.nucleus内核&Decode解码23.oscilloscope示波器9.Modulat
2、ion调制24.Hardware硕件10.Analog模拟25.Multimedia万用表11.flip-flop触发器26.terminalcontrollers终端控制器12.attenuation衰莎戒27.sensor传感器13.peak-to-peakvalue峰峰值28.wirelesstelephone无线电话14.Emitter发射器29.Microwave微波15.distributedsystem分布式计算机系30.artificialintelligence人工智能统二.1.超链接hyperli
3、nksystem2.集线器hub10.集成电路integratedcircuit3.传输transmission11.运算放大器operationalamplifier4•适配器adapter12.负反馈negativefeedback5.调制解调器modem13.带通滤波器band-passfilter6.屮国电信ChinaTelecom14.嵌入式系统Embeddedsystem7.数据信道datachannel15.电路板Circuitboard&终端适配器TerminalAdapter三.9.数字交换系统di
4、gitalswitching缩略语完整形式DataBaseManagementSvstemDBMS口J四.(1)LANe(2)WANb(3)hostcomputerd⑷ISOa(5)Microwaverelayc五.b,b,b，a，b六.(一).1.Whattypesofelementsmayintegratedcircuitspossiblyinclude?transistors,diodes,capacitors,andresistors2.Tellsomeadvantagesofusingintegratedc
5、ircuits-Sharpsize,weightreductions,highreliability,excellentfunctionalperformance,lowcostandlowpowerdissipation(二).1.Whatis“PCM"shortfor?Pulse-CodeModulation2.WhatarethebasicoperationsperformedinthetransmitterofPCM?sampling,quantizing,andencoding3.Whatarethebas
6、icoperationsperformedinthereceiverofPCM?regenerationofimpairedsignals,decoding,andreconstructionofthetrainofquantizedsamples.七.•Everythingyouseeexiststogetherinadelicatebalance・(quotedfromTheLionKing)万物都生活在一个微妙的平衡中•Ithinkitshardwinningawarwithwords・(quotedfromG
7、onewiththeWind)纸上谈兵是没用的。•Whenacallbetweenamobilesubscriberandanordinarysubscriberhasbeensetup,thespeechistransmittedontheradiopathbetweenthemobilestationandavoicechannelunitofthebasestationsituatedclosetothemobilestation.当电话在移动用户和一个普通用户z间建立后，语音将通过无线电波在移动电台和其附近的
8、声咅通道单元基站传输。•Attodayslevelofdevelopment,theICmightcomprisemorethantenthousandseparateelectronicelementsineludingelementsofmanydifferentfunctions,suchasdiodes,transistors,capa
