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 河南成教 / 数据库原理与应用
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[多选题] 防范病毒的有效手段,正确的是___________。


A.不要将软盘随便借给他人使用,以免感染病毒

B.对执行重要工作的计算机要专机专用,专人专用


C.经常对系统的重要文件进行备份,以备在系统遭受病毒侵害、造成破坏时能从备份中恢复


D.只要安装微型计算机的病毒防范卡,或病毒防火墙,就可对所有的病毒进行防范
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