题目内容

下面哪一项不属于针对计算机病毒的防护手段.

A. 升级系统补丁
B. 安装杀毒软件
C. 定期重装系统
D. 定期备份重要数据

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更多问题

A. seized by the power of the law
B. brought to an end
C. caught and fixed
D. taken

A. recognize and enjoy the good qualities
B. understand fully
C. are thankful or grateful for
D. like

A. suffer or experience
B. finish
C. look at or examine carefull
D. go in

A. 对
B. 错