单项选择题

AcustomerreceivesaCD-RWdiskfromacomputervendor.Thecustomertriestoreadthediskinacomputerwitha4XCD-ROMdriveandisunabletoreadanyinformation.ThecustomertriestheCD-RWdiskona32XCD-ROMdriveanditreadscorrectly.Whatisthecauseofthisproblem？（）
A.The4XCD-ROMdrivehasdirtyopticsorlaserandrequirescleaning.
B.The4XCD-ROMdriveneedstobejumperedtosupportCD-RWdisks.
C.The4XCD-ROMdrivedoesnotsupportthemulti-readspecification.
D.The4XCD-ROMisfine，buttheCD-RWdiskhasaflawinitsformat.

A.Thecustomertriestoreadthediskinacomputerwitha4XCD-ROMdriveandisunabletoreadanyinformation.ThecustomertriestheCD-RWdiskona32XCD-ROMdriveanditreadscorrectly.Whatisthecauseofthisproblem？（）
A.The4XCD-ROMdrivehasdirtyopticsorlaserandrequirescleaning.
B.The4XCD-ROMdriveneedstobejumperedtosupportCD-RWdisks.
C.The4XCD-ROMdrivedoesnotsupportthemulti-readspecification.
D.The4XCD-ROMisfine，buttheCD-RWdiskhasaflawinitsformat.

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