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What is the FIRST step in diagnosing a completely ...

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What is the FIRST step in diagnosing a completely dead computer that was working fine the day before？（）

发布日期：2022-07-17

A.remove all peripherals and reinstall them one at a time

B.replace the CMOS battery

C.check the AC power cord and verify the power source

D.back up the entire hard drive

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