A computer virus is a computer program that is created to make and spread (72) of itself.(72)

A．programs

B．virus

C．copies

D．files

[单选题]It is essential that the program ____________ be loaded into computer.A.sho

[单选题]H．ad I known about this computer program, a huge amount of time and energy .A．would have been savedB．had been savedC．will be savedD．was saved

[单选题]H．ad I known about this computer program, a huge amount of time and energy .A．would have been savedB．had been savedC．will be savedD．was saved

[单选题]( )Virus Security Software is designed to detect， eliminate or quarantine c

[单选题]( ) is permanently stored in the computer and provides a link between the h

[单选题]A． ______ computer is a personal computer whose hardware is capable of using any or all of the following media in a program, text, graphics, video and animation.A．databaseB．multimediaC．networkD．mainframes

[单选题]A．(66)computer is a personal computer whose hardware is capable of using any or all 0f the following media in a program：audio，text，graphics，video and animation．A．databaseB．multimediaC．networkD．mainframes

[单选题]You are upgrading computer1 and computer2 from Windows NT Workstation 4.0 to Windows 2000 Professional. You successfully upgrade computer1. During the upgrade of computer2, a series of power outages interrupts the upgrade.You discover that the upgrad

[单选题]Computer Mouse Thebasic computer mouse is______(51)amazingly clever inventi

[单选题]Computer Mouse Thebasic computer mouse is______(51)amazingly clever inventi