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单选题
A technician receives a computer for repair and observes that the fan on the power supply is not moving. Which of the following should the technician do？ （）
A
Move the power supply voltage switch to 220 volts.
B
Add an additional fan to help cool the computer.
C
Replace the cable that attaches the power supply to the motherboard.
D
Replace the power supply.
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考题
单选题A technician deploys a computer in a public library and wants to give the ability for a user without an account to use the computer with limited permission. Which of the following accounts would the technician setup？（）A
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考题
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Use the Recovery and repair the Master Boot Record.D
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