多项选择题
A.speed of memory
B.memory slot color
C.type of memory
D.CPU speed
E.BIOS version
单项选择题 Auserreportsthatwhentryingtoprintadocumentnothingcomesoutoftheprinterandstatesthattheonlyprinterintheprinterdialogboxis’MicrosoftOfficeDocumentImageWriter.’Thetechnicianshouldunderstandthattheproblemisthattheprinter：（）
单项选择题 Auserreportsthatthedisplayonthelaptopappearsblurred.WhichofthefollowingisMOSTlikelythecause？（）
单项选择题 WhichofthefollowingwouldbethewaytopreventtheNumLockLEDfrombeingturnedonautomaticallywhenalaptopisbooted？（）