单项选择题
A printer takes a long time to print high-end graphics. Which of the following would be the FIRST action to take？（）
A.Recommend the use of smaller graphics. B.Replace the toner cartridge. C.Recommend connecting fewer users to the printer. D.Check the amount of memory installed.
单项选择题 Atechnicianisperformingscheduledpreventivemaintenanceonalaserprinter.Whichofthefollowingshouldthetechniciancleanorreplace？（）
单项选择题 Whichofthefollowingistheprocessascannerusestoscanimagestoacomputer？（）
