WWW是Internet上的一种______。

【名词&注释】

应用软件(application software)、计算机病毒(computer virus)、网络浏览器(network browser)、万维网(world wide web)

[单选题]WWW是Internet上的一种______。

A. 浏览器
B. 协议
C. 服务
D. 协议集

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学习资料：

[单选题]●There are several applications called Web (73) that make it easyto access the World Wide WeB．two of the most popular being Netscape Navigator and Microsoft's Internet Explorer.

A. views
B. homepages
C. browsers
D. sites

[单选题]The successful spread of a virus depends on how long it can(74)unnoticed, before its presence is made known by the activation of side-effects. For example, many viruses(75)their code to avoid recognition.

A. move
B. replicate
C. backup
D. die out

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