单项选择题
A.Router B.Bridge C.Hub D.Switch
A user is experiencing headaches and motion sickness sy...
单项选择题A user is experiencing headaches and motion sickness symptoms when using their new computermonitor. Which of the following can a technician adjust to help the user?（）
A. Privacy filter B. Refresh rate C. Use a digital signal D. Brightness
A technician is installing a new power supply into a co...
单项选择题A technician is installing a new power supply into a computer. One of the power supply connectors that the technician needs to connect to the motherboard is square and contains 4-pins. This connector is known as which of the following?（）
A.SATA B.FDD C.IDE D.ATX
A technician installs a CD-RW drive with a feature that...
单项选择题A technician installs a CD-RW drive with a feature that enables the drive to write labels directly onto the disk. The computer will burn disks but will not write labels. Which of the following should the technician do NEXT?（）
A. Reboot the computer B. Remove the drive and reinstall C. Install the device driver D. Flash the BIOS
