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

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问题 SoBig. F damaged computer programs mainly by _____.
The tone of the text can be 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 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B项对文章语气概括充分,为正确答案。
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