● Files can be lost or destroyed accidentally. Keep ___(74)___ copies of all data on removable storage medi

试卷相关题目

• 1● ___(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
• 2● 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
• 3● ___(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
• 4● ___(70)___ is not a linear structure

  A.Graph

  B.Queue

  C.Stack

  D.1-dimension array

  开始考试点击查看答案
• 5● ___(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
• 6● 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