单项选择题
A.corona transfer wire
B.fuser assembly
C.drum assembly
D.pickup roller assembly
单项选择题 Atechnicianreceivesalaptopworkorderstatingthatthemousepointerfromthetouchpadismovingrandomlyaroundthescreen.WhichofthefollowingshouldthetechniciandoFIRST？（）
单项选择题 Atechnicianisperformingpreventivemaintenanceonthehardwarecomponentsinaworkstation.Whichofthefollowingactionsshouldthetechniciantake？（）
单项选择题 Acustomerhassecurityconcernsaboutclassifiedlocaldatabeingcompromisedifthelaptopisstolen.ThecustomerslaptophasWindows2000utilizingtheFAT16filesystem.Whichofthefollowingactionsshouldbetaken？（）