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【简答题】

B
In the 60s, people asked about your astrological (about star) sign. In the 90s, they want to know your website. These days, having a web address is almost as important as a street address. Your website is an electronic meeting place for your family, friends and potentially, millions of people around the world. Best of all, you may not have to spend a cent. The Web is filled with all kinds of free services and all it takes is some time and creativity.
Think of your home page as the starting point of your website. Like the table of contents of a book or magazine, the home page is the front door. Your site can have one or more pages, depending on how you design it.
While web pages vary greatly in their design and content, most use a traditional magazine layout. At the top of the page is a banner(横幅) GRAPHIC. Next comes a greeting and a short description of the site. Pictures, text, and links to other websites follow.
Before you start building your site, do some planning. Think about whom the site is for and what you want to say. Next, gather up the material that you want to put on the site. Draw a rough layout on a sheet of paper.
While there are no rules you have to follow, there are a few things to keep in mind: Start simply. If you are too ambitious at the beginning, you may never get the site off the ground. You can always add to your site.
Less is better. Most people don’t like to read a lot of text online. Break it into small pieces.
Smaller is better. Most people connect to the Internet with a modem(调制解调器). Since it can take a long time to download large image files, keep the file sizes small.
Have the rights. Don’t put any material on your site unless you are sure you can do it legally. Learn the Net’s Copyright Article for more about this.
Now it’s time to roll up your sleeves and start building. Learn the Net Communities provides tools to help you build your site.
59. The main purpose of the author in writing the passage is to tell you——
A. what a website is like B. how to build your own website
C. how to meet people on line D. what a website consists of
60. According to the author, your website is a place——.
A. where you can meet people all around the world
B. to show your street address on line
C. where you can get free services
D. where you can meet people on the Internet
61. The home page of your website should——.
A. give a list of all the contents of your website
B. be so designed that it looks like a front door
C. be so designed that it can direct people to more of your pages
D. be more or less similar to the cover of a book or magazine
62. The author thinks that if you are too ambitious at the beginning,——.
A. your website may leave no space for adding new things
B. you may never have your plan put into practice
C. you may have no idea how to build your website
D. you may tire yourself out

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【单选题】Online services are managed by a host system that maintains a base of information available to satellite users. Users of so-called "dumb" terminals (i. e., those without processing capability)simply a...

A.
Online services are managed by a host system that maintains a base of information available to satellite users. Users of so-called "dumb" terminals (i. e., those without processing capability)simply access the information base via programs stored on the system. Personal computer (PC) users typically access the host through a modem (调制解调器). A PC software program serves as an interface (接口)between the server and a PC, allowing the user to operate through the online system and select different databases using a keyboard or a mouse.
B.
National and regional online systems usually have local telephone numbers that PC modems can call to access either a local information base or an indirect long-distance connection, thus reducing long-distance telephone fees. Some online systems allow users ’to copy large volumes of information onto a local memory storage device, which also reduces the time the user is connected to the online system.
C.
Besides offering a great number of different information based, ranging from full-text journal li- braries to reports of missing children, online services allow users to, for example, reserve airline tick- ets, buy stocks, purchase goods, and communicate with other users. In exchange for the service, users usually pay a monthly membership fee. They may also pay to connect to various databases on the service or to download information.

【单选题】● 调制解调器(MODEM)的主要功能是 (5) 。

A.
模拟信号的放大
B.
数字信号的整形
C.
模拟信号与数字信号的转换
D.
数字信号的编码

【单选题】ITU V90调制解调器(MODEM)______。

A.
下载速率是56kb/s,上传速率是33.6kb/s
B.
上下行速率都是56kb/s
C.
与标准X.25公用数据网连接,以56kb/s的速率交换数据
D.
时刻与ISP连接,只要开机,永远在线

【单选题】调制解调器(Modern)的作用是( )。

A.
将数字脉冲信号转换成模拟信号
B.
将模拟信号转换成数字脉冲信号
C.
将数字脉冲信号与模拟信号互相转换
D.
为了上网与打电话两不误

【单选题】调制解调器(modem)的主要功能是

A.
模拟信号的放大
B.
数字信号的编码
C.
模拟信号与数字信号的转换
D.
数字信号的放大

【单选题】调制解调器(Modem)的功能是。

A.
将数字信号转换成模拟信号
B.
将模拟信号转换成数字信号
C.
兼有A和B的功能
D.
使用不同频率的载波将信号变换到不同的频率范围