单项选择题

What is the passage mainly about

A．The communication revolution made by computers.
B．The development of Information Superhighway.
C．The advantages of the World Wide Web.
D．The development of the Internet.
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单项选择题
We can learn from the last paragraph that______.
A．people use the Internet to search only for some entertainment
B．some information is controlled by some privileged organizations
C．everyone can set up a web site to promote everything he wants to
D．the media have often criticized the Internet because it is dangerous
单项选择题
According to the passage, hypertext (Line 8, Para. 2) is a______.
A．process through which the homepages can be connected to other pages and computers
B．process through which a user can surf the Internet through homepages
C．text which can illustrate the contents of a homepage
D．process through which a homepage can be made
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