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?（）

单项选择题 Which of the following displays has the HIGHEST Hz frequency?（）

单项选择题 Which of the following is a laptop monitor technology that uses a backlight to produce an image on the screen?（）