单项选择题
A. Copy the missing file from another computer and reboot.
B. Execute a Windows repair from the Windows setup media.
C. Boot into the Recovery Console and execute FIXBOOT.
D. Reboot and press the F2 key when prompted.
单项选择题 A system powers on, begins POST, displays the BIOS version information and then hangs with the error message Error loading operating system. Which of the following is MOST likely cause of this issue? （）
单项选择题 After moving files from one folder to another, the technician cannot access them. Which of the following MUST the technician do to regain access to these files?（）
单项选择题 A technician needs a wireless access point to cover most of the office. Which of the following should the technician perform FIRST to achieve this? （）