单项选择题
A technician needs to replace a computer’s hard drive. Which of the following should thetechnician do FIRST?（）
A. Remove network connections
B. Remove the RAM
C. Self ground on the computer case
D. Disconnect power to PC
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A. ESD mat
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A technician has just finished installing a new NIC into a customer’s desktop. Which of thefollowing should the technician do NEXT?（）
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单项选择题
A customer has a question about the repairs needed for their desktop computer. While asking their question to a technician, the technician receives a personal phone call on their cell phone. Which of the following should the technician do NEXT?（）
A. Ask the customer to wait and answer the phone call.
B. Talk on the phone while listening to the customer.
C. Hand the phone to a coworker to answer the call.
D. Silence the phone and then listen to the customer.
