单项选择题
A. Clean the drive with an approved cleaning disk.
B. Check the media for scratches or cracks.
C. Replace the drive with a known good one.
D. Verify the type of media and drive.
单项选择题 A technician cannot access the print queue to delete a print job. Which of the following is the MOST likely cause of this issue? （）
单项选择题 A customer states that it takes a while to refresh their display when multitasking and switching between windows, in Windows XP. Which of the following is the BEST way to shorten the delay and increase response time?（）
单项选择题 A customer’s laptop display panel assembly had just been replaced. The customer notices that the wireless network adapter is enabled but detecting a weak signal. Which of the following is the MOST likely cause?（）