Which of the following statements about DFT is wrong_

A、DFTisausefultoolfordealingwithfinite-lengthsequences.
B、OneperiodofDTFTissampledinequivalentinterval,andtheNsampledpointsobtainedareDFT.
C、WithDFT,thespectrumofthediscrete-timesignalcanberepresentedbyacomputer.
D、Thespectrumofthediscrete-timesignalcannotbeaccuratelyrepresentedbecauseDFTisdiscrete.