SoBig. F damaged computer programs mainly by . The tone of the text can best described as .

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问题 SoBig. F damaged computer programs mainly by ______.
The tone of the text can best described as ______.

选项 A、optimistic and humorous
B、analytical but concerned
C、passionate but pessimistic
D、scholarly and cautious

答案B

解析这是一道语气题。文章分析了两种病毒的机制特点，文末又显示出对未来病毒的担心，可见答案选项对文章语气概括充分，所以正确。

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考研英语一

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