● ___(70)___ is not a linear structure

试卷相关题目

• 1● ___(69)___ is permanently stored in the computer and provides a link between the hardware and other programs that run on the PC.

  A.Interface

  B.Operating system

  C.Internet

  D.Application software

  开始考试点击查看答案
• 2● A ___(68)___ copies a photograph, drawing or page of text into the computer.

  A.scanner

  B.printer

  C.display

  D.keyboard

  开始考试点击查看答案
• 3● The___(67)___ controls the cursor or pointer on the screen and allows the user to access commands by pointing and clicking.

  A.graphics

  B.printer

  C.program

  D.mouse

  开始考试点击查看答案
• 4● A ___(66)___ 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 animation.

  A.database

  B.multimedia

  C.network

  D.mainframes

  开始考试点击查看答案
• 5● 在局域网模型中，数据链路层分为___(65)___。

  A.逻辑链路控制子层和网络子层

  B.逻辑链路控制子层和媒体访问控制子层

  C.网络接口访问控制子层和媒体访问控制子层

  D.逻辑链路控制子层网络接口访问控制子层

  开始考试点击查看答案
• 6● ___(71)___ is the sending and receiving of the message by computer. It is a fast, low-cost way of communicating worldwide.

  A.LAN

  B.Post office

  C.E-Mail

  D.Interface

  开始考试点击查看答案
• 7● The___(72)___ is a collection of computers connected together by phone lines that allows for the global sharing information.

  A.interface

  B.Internet

  C.LAN

  D.WWW

  开始考试点击查看答案
• 8● ___(73)___ are web sites that search the web for occurrences of a specified word or phrase.

  A.Search engines

  B.WWW

  C.Internet

  D.Java

  开始考试点击查看答案
• 9● Files can be lost or destroyed accidentally. Keep ___(74)___ copies of all data on removable storage medi

  A.A.backup

  B.back

  C.black

  D.backdown

  开始考试点击查看答案
• 10● In ___(75)___ programming, the user determines the sequence of instructions to be executed, not programmer.

  A.top-down

  B.structure

  C.data-driven

  D.event-driven

  开始考试点击查看答案