单项选择题
A.The motherboard only supports 3.3v AGP Cards.
B.The motherboard only supports universal cards.
C.The video card is defective.
D.The slot covers are misaligned.
单项选择题 Whichofthefollowingmakestonersticktopaper？（）
单项选择题 Atechnicianreceivesalaptopworkorderstatingthatthemousepointerfromthetouchpadismovingrandomlyaroundthescreen.WhichofthefollowingshouldthetechniciandoFIRST？（）
单项选择题 Atechnicianisperformingpreventivemaintenanceonthehardwarecomponentsinaworkstation.Whichofthefollowingactionsshouldthetechniciantake？（）