Youarethenetworkadministratorforyourcompany.AuserreportsthattheUSBportsonhisWindows2000Professionalportablecomputerfunctiononlywhentheportablecomputerisinitsdockedpositionattheoffice.HeasksyoutoconfigurethecomputersothattheUSBportworkswhentheportablecomputerisdockedandwhenitisundockedandrunningonbatterypower.YouverifythattheportablecomputersupportsACPIpowermanagement.Whatshouldyoudo？（）
A.Modifytheportablecomputer’spowermanagementsettingstoensuretheUSBportsarenot shutdownwhenthecomputerisrunningonbatterypower.
B.Modifytheportablecomputer’sBIOSsettingstodisableACPIwhenthecomputerisrunning onbatterypower.
C.Modifytheportablecomputer’sundockedhardwareprofile,andenabletheUSBroothub.
D.DisabletheBIOSpowermanagementfeaturesintheportablecomputer’sBIOSsettings.
E.Obtainexternalpowersuppliesfortheuser’sUSBdevices.Ensurethatthesepowersupplies areconnectedwhentheportablecomputerisundocked.
F.Undocktheportablecomputer,andreinstallthedriversfortheUSBport.
参考答案：C
