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  3. What difference does it make if we read texts displayed on a computer screen instead of on paper printed with ink? The computer

What difference does it make if we read texts displayed on a computer screen instead of on paper printed with ink? The computer

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问题      What difference does it make if we read texts displayed on a computer screen instead of on paper printed with ink? The computer certainly does not secure deeper comprehension, greater subtlety of mind, or a wider range of imaginative reference. The mediation of a computer, however, put new powers at the disposal of intelligence. The computer itself can do simple reading—as I have noted, it can "read" an immense body of literature in search of designated words. As anyone knows who has ever spent days in libraries in search of errant information, simply identifying relevant sources absorbs inordinate amounts of time in research. The objection may be raised that a search of texts by computer may block the discoveries that occur while browsing in the stacks of great libraries. No member of the academy need fear that the use of a computer will keep him from the stacks, but browsing is easier if texts can be called up on a screen in the serenity of one’s chosen surroundings. The great deficiency of libraries, as we know, is that while titles are catalogued, the libraries have no master indexes of the contents of books. Individual volumes, it is true, have indexes, often of inferior quality, but even the best indexes must be examined ones at a time. The great ad vantage of the electronic library is that a computer could search and analyze its contents without proceeding volume by volume. As work in artificial intelligence develops, computer systems may also become adept at more complex tasks, such as summarizing texts, which has been finished experimentally.
What does the writer mainly talk about in this passage?
选项 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.
答案D
解析 文章主要是列举了电脑的两大优点：一是可以查阅大量的信息；二是可以直接查阅书的内容。选项D说的正是电脑在信息搜索方面的优势。
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