单项选择题
A.Update the scanner drivers using certified drivers
B.Enable the USB port in the computers BIOS
C.USB keyboards DO NOT exist
D.Enable the USB hub controller
E.Reinstall the USB device driver and disable the USB error detection
单项选择题 Youarethenetworkadministratorforyourcompany.AuserreportsthattheUSBportsonhisWindows2000Professionalportablecomputerfunctiononlywhentheportablecomputerisinitsdockedpositionattheoffice.HeasksyoutoconfigurethecomputersothattheUSBportworkswhentheportablecomputerisdockedandwhenitisundockedandrunningonbatterypower.YouverifythattheportablecomputersupportsACPIpowermanagement.Whatshouldyoudo？（）
单项选择题 YouinstallanewUSBscanneronaWindows2000Professionalcomputer.Twoweekslater，theuserofthecomputerinformsyouthatwhenhescansimageswiththescanner，thecolorsdonotdisplaycorrectly.Whenheprintsthescannedimages，thecolorsprintcorrectly.Youneedtoensurethatthescannedimagesdisplaythecorrectcolors.Whatshouldyoudo？（）
单项选择题 Youinstall10USBtabletson10Windows2000Professionalcomputerswithbuilt-inUSBcontrollers.Afterinstallingthetabletsoftware，younoticethatthetabletscannotcommunicatewiththecomputers.Whatmustyoudotorecoverfromthisproblem？（）