单项选择题

According to the context, the underlined expression "simple reading" (Para.1) done by the computer mostly probably refers to ______.

A．reading in search of intended information only
B．looking for unexpected information only
C．reading to locate texts to be used in teaching
D．reading to set up superior master indexes
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单项选择题
What does the writer mainly talk about in this passage
A．The deficiencies of the library in providing information.
B．The different applications of the computer and the library.
C．The advantages and disadvantages of the computer and library.
D．The advantages of the computer in search of information.
单项选择题
The writer believes that reading by the computer is advisable chiefly because ______.
A．it saves a lot of time to find information needed
B．it reads more efficiently than a human mind
C．it covers a much wider range of reference
D．it guarantees reading efficiency and validity
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