2017考研数学真题解析（张宇）

我们先来看看大题。这个大题22题概率的大题。X是一个离散的随机变量，取的点的是1/2，1/2，Y的概率密度，Y大于0小于1，这是0，这是其他。那么一个离散一个连续，而且X与Y独立。那么这种问题，第一

2021年考研真题中，数学一第17题是关于函数极限计算的题，数学一第13题是欧拉方程。数二第1题高阶无穷小，第13题是高于二阶的常系数齐次线性微分方程求解问题，第15题是函数极限的计算，第20题是对

【导语】眼瞅着已经进入2020考研冲刺阶段，现阶段对于大部分2020考研新手来说肯定是无比紧张的，在这里无忧考网想提醒大家，稳住心态，冲到最后!距离考研初试时间所剩无几，如何能够更好地做好英语阅读呢?

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新东方在线推荐：2018年考研一次顺利提分课程！！一科不过，全科免费ThefamilyisthecenterofmosttraditionalAsians'lives.Manypeopleworryabouttheirfamilieswelfare,reputation,andhonor.Asianfamiliesareoften1,includingseveralgenerationsrelatedby2ormarriagelivinginthesamehome.AnAsianperson'smisdeedsarenotblamedjustontheindivialbutalsoonthefamily---includingthedead3.TraditionalChinese,amongmanyotherAsians,respecttheireldersandfeeladeepsenseofty4them.Childrenrepaytheirparents'5bybeingsuccessfulandsupportingtheminoldage.Thisisacceptedasa6partoflifeinChina.7,takingcareoftheagedparentsisoftenviewedasatremendous8intheUnitedStates,swheresagingandfamilysupportarenot9highly.10,intheyouth-orientedUnitedStates,growingoldisseenasabadthing,andmanyoldpeopledonotreceiverespect.Pilipinos,themostAmericanizedoftheAsians,are11extremelyfamily-oriented.Theyare12tohelpingtheirchildrenandwillsacrificegreatlyfortheirchildrentogetanecation.13,thechildrenaredevotedtotheirparents,whooftenlivenearby.Grownchildrenwholeavethecountryforeconomicreasons14sendlargepartsoftheirincomehometotheirparents.TheVietnamesefamily15peoplecurrently16aswellasthespiritsofthedeadandoftheas-yetunborn.Any17oractionsaredonefromfamilyconsiderations,notindivialdesires.People'sbehaviorisfudged18whetheritbringsshameorpridetothefamily.TheVietnamesedonotparticularlybelieveinself-reliance;inthisway,theyarethe19ofpeopleintheUnitedStates.ManyVietnamesethinkthattheiractionsinthislifewillinfluencetheir20inthenextlife.1.A.enlargedB.extendedC.expandedD.lengthened2.A.historyB.interactionC.bloodD.bond3.A.pioneerB.settlersC.immigrantD.ancestors4.A.towardB.forC.ofD.on5.A.contributionsB.sufferingsC.sacrificesD.tributes6.A.formalB.naturalC.regularD.peculiar7.A.incomparisonB.tothesameextentC.inawayD.incontrast8.A.reliefB.responsibilityC.burdenD.business9.A.rewardedB.honoredC.regardedD.complimented10.A.infactB.ofcourseC.andyetD.asaresult11.A.butB.furtherC.stillD.only12.A.confinedB.dedicatedC.correspondedD.exposed13.A.inturnB.inexchangeC.invainD.indebt14.A.occasionallyB.intentionallyC.typicallyD.steadily15.A.insistsonB.consistsofC.persistsinD.resiststo16.A.livingB.livelyC.aliveD.life17.A.incidencesB.decisionsC.accidentsD.expedition18.A.onB.forC.byD.in19.A.counterpartB.oppositeC.competitorD.opponent20.A.stationB.statusC.statureD.state参考答案：1.B2.C3.D4.A5.C6.B7.D8.C9.B10.A11.C12.B13.A14.C15.B16.C17.B18.A19.B20.B

新东方在线推荐：2018年考研一次顺利提分课程！！一科不过，全科免费Generallyspeaking,aBritishiswidelyregardedasaquiet,shy