【答案资料】大工17秋《专业英语计算机英语》在线测试1
1单选题(4分)（）differencebetweenthelowestandhighestfrequenciestransmittedinaparticularchannelorsystem.大连理工大学答案
AAmplitude
BBandwidth
CBridge
DNetwork
正确答案B
2单选题(4分)
()alsocalledaPersonalcomputerorPCdefinesacomputerwhichisdesignedforgeneralusebyasingleperson.Itcanperformallofitsinputtingprocessingoutputtingandstorageactivitiesbyitself.
AMicrocomputer
BSupercomputer
CMainframe
DMinicomputer
正确答案A
3单选题(4分)
()programsareusedtorecoverdeletedordamaged(corrupted)files.
ADatarecovery
BSystemcall
CSystemcrash
DSystemsoftware
正确答案A
4单选题(4分)
()Inencryptionatwokeysysteminwhichthekeyusedtolockdataismadepublicsoeveryonecan"lock".Asecondprivatekeyisusedtounlockordecrypt.
AAsymmetrickey
BSymmetrickey
CCoputervirus
DDigitalsignatures
正确答案A
5单选题(4分)
()referstothephysicalequipmentthatcanperformthebasicfunctionscontainedwithinthedataprocessingcycle.
ASoftware
BHardware
CMemory
DCPU
正确答案B
6单选题(4分)
Whichoneisawordprocessingandtexteditingtool?
APhotoshop
BWord
CExtreme3D
DPremiere
正确答案B
7单选题(4分)
()aretheperipheralsthatallowuserstoenterdataprogramscommandsanduserresponsesintoacomputerandtransformthemintoasuitableformforprocessing.
ARAM
BROM
CInputdevices
DMemory
正确答案C
8单选题(4分)
Thefirstcomputersused（）forcircuitryandmagneticdrumsformemoryandwereoftenenormoustakingupentirerooms.
Avacuumtubes
Btransistors
Cintegratedcircuits
Dmicroprocessors
正确答案A
9单选题(4分)
（）performsarithmeticcomparisonandlogicoperations.ItisonepartoftheCPU.
ARAM
BROM
CCPU
DALU
正确答案
10单选题(4分)
()(PravateKey)inencryptiononekeyisusedtobothlockandunlockdata.Comparewithpublickey.
AAsymmetrickey
BSymmetrickey
CCoputervirus
DDigitalsignatures
正确答案B
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