【判断题】【消耗次数：1】
杀毒软件可以清除各种未知的病毒
①
正确
②
错误
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相关题目
【单选题】
目前使用的杀毒软件，能够（）。
①
检查计算机是否感染了病毒，可以清除所有的病毒
②
检查计算机是否感染了某些病毒，可以清除其中一些病毒
③
检查计算机是否感染了任何病毒，可以清除所有病毒
④
防止一切病毒进入计算机
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Lexical competence consists of receptive knowledge and productive knowledge.
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①
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②
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