【单选题】A、hacker is ______.
A. someone who breaks into and uses someone else's computer
B.someone who breaks commercials
C.someone who fixes someone else's computer
D.someone who does not know about computers
网考网参考答案:A
网考网解析:
第一段。黑客闯入其他人的计算机造成计算机系统瘫痪。
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