单项选择题 A technician replaces a computer’s NIC with a wireless card. The user wants to save the NIC.Which of the following should the technician use to preserve the NIC? （）

单项选择题 A technician has just finished installing a new NIC into a customer’s desktop. Which of thefollowing should the technician do NEXT?（）

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?（）