简介：Therearefourengineerstravelinginacar;amechanicalengineer,achemicalengi-neer,anelectricalengineerandacomput-erengineer.Thecarbreaksdown.“Soundstomeasifthepistonshaveseized.Wellhavetostripdowntheenginebeforewecangetthecarworkingagain,”saysthemechanical
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