Detectivesarev的精选

问题详情：阅读理解;阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项。Detectivesareveryimportantbecausetheyhelpthepolicewiththeirinvestigations(调查).Whenthepolicearriveatacrimescene,itisno...