最新线性代数 递推公式法(行列式例题)教程文件.doc

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1、TH1：提取公因子：===化上三角形：===递推法:由此得递推公式：即而得大学英语二（本科）试卷（答案写在答题纸上，写在试题纸上无效）一、Phonetics(10小题，每小题2分，共20分)　　Directions:Ineachofthefollowinggroupsofwords,therearefourunderlinedlettercombinationsmarkedA,B,CandD.Comparetheunderlinedpartsandidentifytheonethatisdifferentf

2、romtheothersinpronunciation.MarkyouranswerbyblackeningthecorrespondingletterontheAnswerSheet.　　1.A.nurseB.thirstyC.universeD.surprise　　2.A.beliefB.nieceC.fieldD.variety　　3.A.surprisedB.pleasedC.refusedD.increased　　4.A.temperatureB.changeC.averageD.surface　

3、　5.A.constructionB.coralC.crossD.model　　6.A.mentalB.metalC.totalD.metallic　　7.A.detectiveB.decideC.nephewD.desire　　8.A.determineB.demandC.medicalD.belief　　9.A.peasantB.presentC.promiseD.possession10.A.speechB.stomachC.chargeD.church二、VocabularyandStructure

4、(30小题，每小题2分，共60分)　　Directions:Thereare30incompletesentencesinthissection.ForeachsentencetherearefourchoicesmarkedA,B,CandD.ChooseoneanswerthatbestcompletesthesentenceandblackenthecorrespondingletterontheAnswerSheet.　　1.Luckily,thefirefightersarrivedand____

5、___theterriblefire.　　A.putonB.putoutC.putdownD.putaway　　2.Formilesandmiles,Icouldseenothing_______agreatfireandlotsofsmoke.　　A.besideB.besidesC.exceptD.without　　3.Theshopassistantdidn’tgivemetheright________.　　A.changeB.moneyC.serveD.note　　4.Thepricesoffri

6、dgeshavebeen______recently.　　A.pressedB.broughtoutC.cutoffD.broughtdown　　5.Thismeanstheboymaybeoutofjobforsometime.Inthissentence“beoutofjob”means_______.　　A.beontheirdaysoffB.gooutside　　C.losehisjobD.finishhiswork　6.TheTVplaywewatchedlastnightwasvery_____

7、___.　　A.frighteningB.afraidC.frightD.frightened　7.Wetooksoftdrinkstothe_______andourfriendstookbeerthere.　　A.benchB.beachC.bankD.bend　8.Whowill________thebill?　　A.payB.payforC.payoffD.payout　9.Theirdebts_______700.　　A.addedtoB.addsupC.addtoD.addupto　10.The

8、reis_______breadinthecupboard,________?　　A.nomore…isthereB.notanymore…isn’tthereC.nolonger…isthereD.notanylonger…isn’tthere11.—Wouldyoupleasegooutforawalkwithus?　　—______,butI’mverybusynow.