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  3. Why dose the author hold the opinion that the IBM personal computer is a rare exception? It can be inferred from the third para

Why dose the author hold the opinion that the IBM personal computer is a rare exception? It can be inferred from the third para

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问题 Why dose the author hold the opinion that the IBM personal computer is a rare exception?
It can be inferred from the third paragraph that ______.
选项 A、it is hard to find a job as a computer engineer.
B、PC is not the best option as a tool to gather information.
C、PCs are so expensive and energy-hungry.
D、every advantage has its disadvantage.
答案B
解析 第三段：But although the PC has its merits，it also has its faults…but...And...expensive and energy-hungry…cheap and easy access to information—to everyone on the planet，the PC may not be the best tool for the job.本题相对比较难，其题干形式在近年考试中出现频率很高。这种题目要求对第三段所有信息全部理解，本段出现了转折，通常正确答案应该在转折之后出现。全段结尾谈到如果就数字技术带给这个星球上所有人的好处—主要是获取信息既便宜又容易—而言，PC也许并非最好的工具。因此B正确。注意：此类题目不一定是考段落主旨。本题之所以较难，主要在于C和D的干扰性很强。C选项的内容确实在文中提过，但文中谈到其昂贵和高耗能问题时是针对发展中国家讲到的，C缺少限定内容。D是一个成语，乍一看，觉得很像本段大意的总结，但其意思太过空泛；另外，本段强调的主要是个人电脑的劣势，故不选。选择A选项是因为全段最后一句没有读懂。
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