文档介绍：在线教务辅导网:配套课件资源请访问在线教务辅导网2019/9/41UnitEightAfter-saleServicesandTestingTechnology2019/9/42Task1VocabularyStormingbillboard, code, feedback,inspection,Switch,customerservice,municate, defective,?2019/9/..businessname2019/9/&speaking::’: troubleshooting,immobilizer,procedure,apprentice,analysis,DTC,symptom,plicated,inspection,workshop,DTC(diagnostictroublecode)2019/9/49Keysentences: 1. CanIhelpyou? 2. Thereissomethingwrongwith… 3. Itisnotaseasyasyouexpected. 4. Whataretheprocedures? 5. Howlongdoesittake? 6. Itsounds… 7.