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多项选择题Which of these are symptoms of malware on a computer? （）(Select TWO).

A、Hard drive and network activity is higher when the computer is idle

B、CD-ROM ejects unexpectedly from the computer

C、Web browser accesses unexpected websites

D、Prints from the computer have random characters and symbols instead of text

E、The monitor has a permanent image burned into the display

  • A,C

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