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单选题 Files can be lost or destroyed accidentally. Keep____copies of all data on removable storage media
学科：2024-2025-2学期专业英语
时间：2025-03-24 02:11:08
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题目1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: audio, text, graphics, video and animationA. databaseB. multimediaC. networkD. mainframes
题目2单选题
The_____controls the cursor or pointer on the screen and allows the user to access commands by pointing and clickingA. graphicsB. printerC. programD. mouse
题目3单选题
A__________copies a photograph, drawing or page of text into the computerA. ScannerB. printerC. displayD. keyboard
题目4单选题
__________is permanently stored in the computer and provides a link between the hardware and other programs that run on the PCA. InterfaceB. Operating systemC. InternetD. Application software
题目5单选题
__________is not a linear structureA. GraphB. QueueC. StackD. I-dimension array
题目6单选题
__________is the sending and receiving of the messages by computer. It is a fast, low cost way of communicating worldwideA. LANB. Post officeC. E-mailD. Interface
题目7单选题
The_____is a collection of computers connected together by phone lines that allows for the global sharing of informationA. interfaceB. InternetC. LAND. WWW
题目8单选题
____are Web sites that search the Web for occurrences of a specified word or phraseA. Search enginesB. WWWC. InternetD. Java
题目9单选题
Files can be lost or destroyed accidentally. Keep____copies of all data on removable storage mediaA. backupB. backC. blackD. back down
题目10单选题
In______programming, the user determines the sequence of instructions to be executed, not the programmerA. top-downB. structureC. data-drivenD. event-driven
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