A user, Jill, is reporting her mouse is moving when Jill is not moving it, and the computer is running slower than normal. Which of the following is the FIRST action that Karen, a technician, should take?（）
- A、Run chkdsk.
- B、Run an antivirus program.
- C、Replace the faulty mouse.
- D、Remove any recently added hardware.
正确答案:B
答案解析:有
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