会计学UnitTwoPartATheFractionalReserveBackgroundknowledgeintroductiontotheknowledgewithEnglishsentencesintroductiontotheknowledgewithEnglishsentencesLanguagePointsLanguagePointstheexplanationofthetextExercisesandKeytoexercises:UnitTwoPartBTheThreeMsBackgroundknowledgeBackgroundknowledgeDetailedexplanation:LanguagePointsLanguagePointsExercisesandKeytoexercises:UnitTwoPartCSimpleandCompoundInterestSimpleandCompoundInterest单利(dānlì)复利ThreeelementsforcalculatinginterestPrincipalamount(P):Time(T)IntheaboveexampleTheformulaofsimpleinterest:公式(gōngshì)TwootherexamplesaboutsimpleinterestIntheaboveexampleIntheaboveexampleTheformulaofcompoundinterest:Newwordsinthistext内容(nèiróng)总结