No computer system is immune to a virus , a particularly malicious program that is designed to ___ and electronically ___ the disks on which data are stored.

A prepare

D secure

B restore

E damage

C infect

F repair

选CE

翻译：没有什么计算机系统能免于病毒的侵扰，那是一种专门设计来感染和损坏存储数据的硬盘的恶意程序。

两空都向malicious看齐，找负面动作。