题目内容:
Whieh of the foilowing is NOT mentioned in the passage as an instance of attack by a hacker?
A.Deleting information in the computer’s memory B.Shutting down the computer whenever he wishes.
C.Entering your house to steal.
D.Spoiling a system for air traffic.
参考答案:【答案仅供学习,请勿对照自行用药等】
答案解析: