【单选题】【消耗次数：1】
不是计算机病毒的特点有（ ）。
①
破坏性
②
隐蔽性
③
可触发性
④
变异性
⑤
传染性
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【简答题】
计算机病毒的可触发性是指计算机在感染了病毒后，很多计算机病毒并不会立即发作，而有一定的[填空]。
【单选题】
计算机病毒的危害性表现在（ ）。
①
能造成计算机器件永久性失效
②
影响程序的执行，破坏用户数据与程序
③
不影响计算机的运行速度
④
不影响计算机的运算结果，不必采取措施
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Well, it’s getting late. I must be going. Thank you again for inviting me to the party.
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Oh, it’s so late
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Oh, so soon?
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