From the passage we can infer that ______. The purpose of the author in writing the text is to ______.

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问题 From the passage we can infer that ______.
The purpose of the author in writing the text is to ______.

选项 A、welcome "good" viruses
B、illustrate the nature of "good" viruses
C、expose the harm of "good" viruses
D、condemn the misbehavior of spreading viruses

答案B

解析 本题是主旨题,文章从第1段中提出电脑病毒问题,指出一些病毒制造者希望传播有益而不是有害的电脑病毒。后面几段则以Cheese Worm、VBS.Noped.A@mm等为例,对"好"病毒的性质加以阐述。
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