YouhaveaUSBdrive.YouconnectthedrivetoacomputerthatrunsWindowsXPProfessionalServicePack2(SP2).Youdiscoverthatafter15minutes,theUSBdrivefailstoappearinMyComputer.YouneedtoensurethattheUSBdriveappearsinMyComputer.Whatshouldyoudo?（）
A.Atthecommandprompt,rundefrag.exe-f.
B.Atthecommandprompt,runchkdsk.exe\/f.
C.FromDiskManagement,assignadrivelettertotheUSBdrive.
D.Deletetheusbui.dllfilefromthecomputer,andthenrestartthecomputer.
参考答案：C
