【单选题】【消耗次数：1】
下列哪一项不是计算机病毒的特点（ ）
①
寄生性
②
传染性
③
潜伏性
④
非授权性
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相关题目
【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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