Intemet就是广域网，广域网也就是Internet，两种是对同一种事物_爱下问搜题

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问题判断题

Intemet就是广域网，广域网也就是Internet，两种是对同一种事物的不同叫法。( )

答案

参考答案：错

解析： Internet又称因特网或国际互联网，是当今世界上最大的国际性计算机互联网络，是广域网的一种。

单项选择题

KMnO4滴定Na2C2O4时，第一滴KMnO4溶液的褪色最慢，但以后就变快，原因是：()

A、反应产生Mn2+，它是KMnO4与Na2C2O4反应的催化剂

B、该反应是分步进行的，要完成各步反应需一定时间

C、当第一滴KMnO4与Na2C2O4反应后，产生反应热，加快反应速度

D、KMnO4电位很高，干扰多，影响反应速度反应产生Mn2+，它是KMnO4与Na2C2O4反应的催化剂

单项选择题

Personal computers are used by one person at a time. The largest personal computer, or PCS, can fit on a (1) . Some of these (2) have more than one microprocessor. (3) the primary processor, which is a general-purpose device, a PC may have one or more processors to (4) special kinds of work. Some machines, (5) , have maths processors, others have graphics processors to help process photographs and other illustrations. Still others have (6) processors.
Office workers also use PCS that are not (7) to a network. These machines are used for (8) tasks as word processing, performing financial calculations, and organizing and (9) bodies of information called databases. People use PCS at (10) for some of the same kinds of tasks. They use word processing programs for (11) Communication, financial software for household budgets. Individuals also use their home computers to play (12) and to communicate (13) the internet.
Small, portable PCS are (14) with people who often work away from their desks. The (15) include laptop computers, which can be (16) on the lap; notebook computers, which are about the (17) of a loose leaf notebook; and palmtop, or handheld computers, which can be operated while (18) in the hand. Laptop and notebook computers have the same (19) as desktop computers. Palmtop computers have less power but still (20) some advanced capabilities. For example, they can process household financial data.

二、完形填空

A．sorting

B．dividing

C．to arrange

D．to separate