在R△ABC中，∠C＝90°，AB＝3．以C为圆心，2为半径作圆，线段PQ为该圆的一条直径，则的最小值为　 　．

补全轴对称图形的时候要先找到

6＝2x+3不是方程．判断对错

Wegrewupwiththefamiliartoybricksthatgaveustheimaginationtobuildtowersandcastles.Generationshavebeenattractedbythistoythatletschildrenandadultsalikecreateanythingandeverything.Butwithover200millionssetsbeingsoldayearinover100countriesthequestionremains﹣wheredidLegoactuallycomefrom? LegowasbornfromthecreativemindofDanishcarpenterOleKirkChristiansenbackintheearly1930s.HeestablishedasmallbusinessinDenmark.Heandhisteambuiltavarietyofhouseholdgoodslikeironingboardsalongwithwoodentoys.TheLegonamewasadoptedin1934formedfromtheDanishwordsLegGodtorplaywellwhichmeansIstudyorIputtogetherinLatin. Christiansen'scompanycontinuedtomakewoodentoysuntil1942whenfirestruck﹣theentireLegofactoryburnedtotheground.Unwillingtogiveinthefactorywasrebuiltandtheproductionlinerestartedsoonafter.By1954Christiansen'ssonGodtfredhadbecomethejuniormanagingdirectoroftheLegoGroup.Itwasduringhisconversationwithanoverseasbuyerthathewasstruckbytheideaofatoysystem. Forover30yearstheLegoCompanymadeonlytoysandrelatedgoods.Thenin1968thecompanyopeneditsfirstLegolandinDenmark.CombiningtheLegobuildingbrickswithacomputertheRoboticsInventionSystem1.5isnowthemostadvancedtoyintheLegoCompanywhichistargetedatusersagedtwelveandaboveandthatincludesanyparentsorgrandparentsthatwanttojoinin. NowtheLegoCompanyisexpandingitsproductionlinestoincludelightscamerasandsoon.LegoCompanyhasdonealottoentertainmanychildrenaroundtheworld. 1Theauthorpresentsthetextby. A.tellinganinterestingstory B.showingtheprocessindifferentstages C.introducingapracticalmethod D.describingmanydifferentactivities 2WhichofthefollowingisNOTtrueabouttheRoboticsInventionSystem1.5? A.ItisthemostadvancedtoyintheLegoCompany. B.ItcombinestheLegobuildingbrickswithacomputer. C.Itisintendedforusersagedtwelveandabove. D.Itisthemostexpensivetoyinventedsince1968. 3WhatisthecorrectorderofthefollowingeventsinthedevelopmentofLego? a.TheentireLegofactoryburnedtotheground. b.ThecompanyanditsproductsadoptedthenameLego. c.ThecompanyopeneditsfirstLegolandinDenmark. d.GodtfredhadbecomethejuniormanagingdirectoroftheLegoGroup. A.cadb B.cbad C.abcd D.badc 4Whatcanwelearnfromthetext? A.TheLegoCompanyexpandsitsproductionlineswithcomputers. B.TheauthorthinkshighlyofLegowhichentertainsmanychildren. C.ThenameLegomeansIputtogetherintheDanishlanguage. D.Legoenjoysthegreatestpopularityamongchildrenof12.

把红黄蓝白四种颜色的球各8个放到一个袋子里至少要取个球才可以保证取到两个颜色相同的球．

一瓶饮料有L爸爸喝了这瓶饮料的妈妈喝了其余的全被小宝喝了．小宝喝了这瓶饮料的几分之几

小新跳高的高度和他的身高成正比例．．判断对错

YoureBookbargainsforSunday! LookMeintheEye JohnElderRobison ISBN0307396185 ANewYorkTimesbestsellingmemoirthatissweetandfunnyandsadandtrueandheartfeltAugustenBurroughtsbestsellingauthorofRunningwithScissors.Johnalwaysknewhewasdifferent.Butiswasn'tuntilhewasdiagnosed诊断withaformofautismcalledAsperger'sthatheunderstoodwhy 1.9911.99 SurvivalintheShadows BarhbaraLovenheim ISBN1432710710 SetinBerlinduringtheHolocausttwoJewishfamiliesescapedrelocationtoAuschwitzbyhidinginasmallfactory.Withnofixeddailyfoodoridentificationtheymanagedtosurvivetoseetheendofthewarthroughthekindnessanddiscretionofstrangers.Amovingtaleofbraveryandcompassion. 1.999.99 ASeedIsSleepy DiannaHuttsAstonandSylviaLong ISBN1452131473 Alovelyeducationalpicturebookthatintroduceschildrentotheworldofseedsandplants.Withwatercolorillustrationsandpoeticmusingsthisstoryseedsandplants.Withwatercolorillustrationsandpoeticmusingsthisstorywillencouragekidstowonderabouttheplantworld'smysterious.Gorgeousspectrumofpossibilities. 1.994.99 TheIncarnations SusanBarker ISBN1161590609 Abrilliantmind﹣expandingandwildlyoriginalnovelChrisCleave.ThisNewYorkTimesNotableBookof2015followsataxidriverinBeijingashefindsamysteriousletterthatwillleadhimthroughhispastlives﹣andtohissoulmate.Agorgeousprize﹣winningstoryperfectforfansofTheTimeTraveler'sWife. 1.9913.99 InviteYourFriends Doyoufriendslovetoread?InvitethemtojoinBookBubtoday! Sendinvitation 33.ThestorythesurvivaloftwoJewishfamiliesiswrittenby. A.BarbaraLovenheim B.JohnElderRobison C.DiannaHuttsAstonandSylviaLong D.SusanBarker 34.ReaderswholikeTheTimeTraveler'sWifearelikelytobeinterestedin. A.TheIncarnations B.SurvivalintheShadows C.ASeedIsSleepy D.LookMeintheEye 35.Thetextprobablycomesfrom. A.aguidebook B.awebpage C.anofficialdocument D.abookreview.

1电影院在大转盘偏度方向米处．图中数据取整厘米 2超市在大转盘南偏西40度方向0.7千米处．请在如图中标出超市的位置．

一台电冰箱的原价是2100元现在按七折出售求现价多少元列式是

假设你是李华负责接待来中国体验传统文化的美国学生.请你用英语向他们介绍主要活内容要点如下 1.学习中国书法 2.观看京剧表演 3.参观孔子庙. 参考词汇书法calligraphy京剧BeijingOpera孔子庙ConfuciusTemple 注意1.词数100左右 2.可适当增加细节以使行文连贯 3.开头和结尾已经为你写好不计入总词数. Dearfriends OnbehalfofourschoolIwouldliketoexpressourwarmwelcometoallofyou IsincerelywishyoupleasanttimeinChina.Thankyou!

把0.005扩大100倍是把9.8缩小倍是0.0098．

一件衣服商场促销降价20%出售此时买这件衣服相当于打出售．

自然数a除以自然数b商是5这两个自然数的最小公倍数是

水位上升3cm记作+3cm则﹣3cm表示水位下降3cm．判断对错

12和15的最大公因数是4和6的最小公倍数是．

已知a和b互为倒数÷＝

我国神舟五号载人飞船着陆在内蒙古的四子王旗．在一幅比例尺是115000000的地图上量得四子王旗与北京的距离是3厘米这两地之间的实际距离大约是多少千米

把3千克的黄豆平均分成4份每份是1千克的是3千克的．

一个半圆半径是r它的周长是

一个三角形中最大的角是钝角这个三角形一定是钝角三角形．判断对错

在一幅中国地图上画有一条线段比例尺把它写成数值比例尺的形式应该是．在这幅地图上量得甲乙两地的距离是3.4厘米甲乙两地的实际距离是千米．

工程队铺设一条长1500米的公路已铺设了4天每天铺设150米．余下的每天铺设180米还要几天铺设完成用方程解

小猴要给一块地围上篱笆的围法更牢固些．

DONALDSLOAN GatesHall UniversityofKansas LawrenceKS66045 913﹣243﹣1682 AfterMay2009 46ClaytonDrive St.LouisMO63130 314﹣726﹣8840 Objective Toworkwiththeclient委托人populationinasocialserviceposition. Education B.A.UniversityofKansasLawrenceKS2009 MajorSocialServices MinorAppliedPsychology Experience AssistantActivitiesSupervisorFairviewNursingHomeLawrenceKSNovember2006﹣present.Helporganizeandimplementrecreationalactivitiesfornursinghomeresidents.Activitiesincludecraftsdancesdaytripssing﹣alongsandvisitingperformers. HotlineVolunteer.TeenCrisisCenterLawrenceKSSeptember2006﹣May2007.Handledcrisiscallsfromteenagersinthecommunity.Dealtwithdruguseunwantedpregnanciesfailinggradesandthebreakdownofparent﹣teenrelationships. Nurse'sAideDanyersGeneralHospitalSt.LouisMOSummer2006.Assistednursesinpatientcare.Tookhistoriesupdatedchartsandhelpedpreparepatientsforsurgery. Activities UniversityConcertBoard.Workwithotherboardmemberstoplanandimplementon﹣campusconcerts. SeniorGiftCampaign.Helpmanagethecampaigntoraisefundsfortheseniorclassgifttotheuniversity. ResidenceHallProgrammingBoard.PlannedsocialeventsforEggarResidenceHall. Skills FluentinFrench.Watersafetyinstructor.Skilledatworkingwithpeople. Interests Skiingsoftballclassicalmusicandguitar. 1Thispassageismostprobably. A.anadvertisementforenrollingnewemployees B.aschoolreportattheendofanacademicyear C.aself﹣introductionmeanttoapplyforajob D.apartofarecommendationletterfromauniversity 2AccordingtotheExperiencesectionwecaninferthatDonaldSloancanbe. A.awiseleader B.askillfulperformer C.agiftedscientist D.agoodsocialworker 3FromthepassagewecanlearnthatDonaldSloan. A.isgoodatsinginganddancing B.isabouttograduatefromauniversity C.hasaninterestinbeingasurgeon D.specializesinpsychology.

若定义域为R的偶函数fx满足f2﹣x＝﹣fx且当0≤x≤1时fx＝1﹣x则函数gx＝fxex在[﹣22]上的最大值为

已知函数y＝fx在R上的图象是连续不断的一条曲线并且关于原点对称其导函数f'x为当x＞0时有不等式x2f'x＞﹣2xfx成立若对∀x∈R不等式e2xfex﹣a2x2fax＞0恒成立则正整数a的最大值为．

用35厘米长的铁丝围成一个等腰三角形已知腰和底的长度比是31则腰长厘米．

a是大于0的数a+a2÷a﹣a+a﹣a×a的结果是

某风景区推出优惠游活动如下表现在有成人12人儿童3人要去游玩想一想怎样买票最省钱最少花多少钱

想一想填一填． 一个圆锥的体积是9m3和它等底等高的圆柱的体积是m3．

在打击拐卖儿童犯罪的活动中警方救获一名男孩为了确定他的家乡警方进行了调查 知情人士A说他可能是四川人也可能是贵州人 知情人士B说他不可能是四川人 知情人士C说他肯定是四川人 知情人士D说他不是贵州人． 警方确定只有一个人的话不可信． 根据以上信息警方可以确定这名男孩的家乡是

下列说法中正确的是

把17平方分米改写成平方米作单位的数要

李庄有良田320公顷它的种小麦其中是无公害麦田李庄共有无公害麦田

妈妈买8只茶杯付了100元找回m元一只茶杯元．

在边长为20dm的正方形铁皮上剪圆片． 1如图1正方形铁皮剪完一个圆后剩下的边角料的面积是多少 2如图2像这样剪4个大小相等的圆剩下的边角料的面积是多少正中心的边角料阴影部分面积是多少 3猜想 继续像上面这样剪圆片在正方形铁皮上剪下9个大小相等的圆剩下的边角料是多少剪16个圆呢从中你发现了什么为什么会这样呢请写出你的想法．

下图中BC的长度是6厘米点B到对称轴的距离是厘米．

125+67+75＝67+125+75应用了

Onedayayoungmanwaswalkingalongtheroadwhenheheardacry.Itseemedtobecomingfromunderneathabridge.Asheapproachedthebridgethesoundgot1loudandthenhesaw2pitifulsight.Therelyinginthemuddyriverbedwasalittledogabouttwomonthsold3frontlegsweretightlytiedwithropes.Ithadwoundsonitsheadand4coverwithmud. Theyoungmanwantedtohelpthedog5asheapproachedthedogstartedtobark.Theyoungmandidnotgiveup.Hesatdownandstarted6gentletalkingtothedog.Ittookalongtimebuteventuallythedog7stopbarkingandthemanwasabletotouchit.Theyoungmancarriedthedoghomecared8itswoundsandgaveitfoodandwater.Evenwithallofthisthedogwasstill9friendeverytimetheyoungmanapproached.Buttheyoungmandidnotgiveup.Weekswentbyandthemancontinuedattendingtothedog.Thenonedayastheyoungmanapproachedthedogwaggeditstail. Itwasconsistentloveandkindness10wonalifelongfriendshipofloyalty.

已知函数fx＝|2x﹣3|+|x+1|． Ⅰ求不等式fx≤5 Ⅱ若不等式fx≥|2x+a|的解集包含[01]求实数a的取值范围..

拉抽屉是现象

设z＝3﹣5i则在复平面内对应的点位于

已知fx＝|ax﹣1|﹣|ax+1|a＞0． Ⅰ求fx的最小值b及最大值c Ⅱ设m＞0n＞0m3+8n3＝c求m+2n的最大值．

把一个铁块放入装满水的容器里水溢出了358毫升那么这个铁块体积就是

找规律0.437.5%．

画出轴对称图形的另一半相当于将其

如图圆的周长单位厘米是

一个正方体的棱长是5厘米它的表面积是

下面每组中的两个图形经过平移后可以互相重合的是

每小时织布米数一定织布总米数和时间成正比例．．判断对错

假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中共有10处语言错误每句中最多有两处.每处错误仅涉及一个单词的增加删除或修改. 增加在缺词处加一个漏字符号∧并在其下面写出该加的词. 删除把多余的词用斜线\划掉. 修改在错的词下划一横线并在该词下面写出修改后的词. 注意1.每处错误及其修改均仅限一词 2.只允许修改10处多者从第十一处起不计分. Iknowyouhadtroublecommunicatingwithothersandyoumayoftenfeellonely.That'swhyyouarenewhereandpeopledon'tknowaboutyou.ButIthinkyoucanmakeitifyoucanfollowtheadvicesbelow. Firstyoushouldtakeaactivepartinthediscussionsandshowyourownopinionsaboutthematters.Atthesametimeneverfailtolisteningtootherpeople'sviews.Secondyoushouldlearnyourclassmates'likesanddislikes.Onlyinthiswaywillyoubeabletogettoknowmoredifferentlypeopleandshowthemthatyouareactuallyveryfrienly.LastbutnotleastIwillalwaysreadytohelpyou.WecantakepartinsomeactivitiestogetherwhenIcanintroduceyoutoothers. Astimegoesonpeoplewillknowyourselfbetterandbewillingtomakefriendswithyou. Bestregards. Peter.

小刘1.5小时可以步行6km照这样的速度他1小时可以步行多少km步行1km需要多少小时

x+y＝9不是方程．判断对错

一个两位小数保留一位小数的近似数是10.0原来这个数最小是

有12个桃子平均放在6个盘子里面每个盘子里面放个桃子每个盘子里的桃子占桃子总数的．

Duringthecourseofalifetimeweallmakemistakes.Andoftenwetakeforgrantedwhatwehave.Wethinkthatwesurely1whatwealreadyhave.Wealsobelievethatwewillneverneedanyoneto2usoutfromdifficultandchangingtimes.Cecilianotherrealnamehadagreatjobanicehouseandeverythingshe3.Shewas4notakindpersonforseveralreasonsthatbecameobvious5yougottoknowher. Itwasveryclearthatshe6pityforotherswhowerenotasfortunateasshewas.Shewouldnothelpanyonenorwouldsheevenbegintoexpressany7foranyoneintrouble.Her8wasthattheywerejustlazyorthattheyweredeservingbecausetheyhadpersonalproblems. Butthen9thefatefulday.Herhusbandgotintofinancialdifficultytothepointwherehewas10todeclarebankruptcy破产.Nowshefoundthatshewastheonewhohad11.Shewasdesperateforhelp.Shefoundoutthatevenher12wereunwillingtohelpherbut13forherherhusband'sfamilywaswillingandabletohelpthemthroughthesedifficulttimesdespitethefactthatshehad14themfromherlife.IwishIcouldgiveyouabeautifulendingtothisstoryofhelpbutI15cannot.EventhoughCeciliawasassisted16challengingtimesonceovershe17hertrueself. Asweallknowweallneedhelpsomewherealonglife's18whetherwethinkwewillornot.Ifyouhaveremained19oushouldtryyourbesttohelpthosethatneedyourhand.Ifyou20throughlifehelpingcaringforgivingyouwillalwayshaveyourownspecialfanclub﹣itisthosewhalwaysloveandrespectyou. 1A.decrease B.abandon C.deserve D.evaluate 2A.help B.drive C.pull D.knock 3A.borrowed B.needed C.offered D.donated 4A.thus B.still C.just D.though 5A.once B.until C.because D.before 6A.enjoyed B.adjusted C.controlled D.lacked 7A.viewpoint B.satisfaction C.sympathy D.potential 8A.purpose B.view C.plan D.promise 9A.happened B.appeared C.existed D.came 10A.forced B.persuaded C.encouraged D.ordered 11A.something B.nothing C.anything D.everything 12A.servants B.secretaries C.parents D.employers 13A.fortunately B.surprisingly C.strangely D.curiously 14A.protected B.predicted C.supported D.avoided 15A.happily B.quietly C.sadly D.luckily 16A.beyond B.through C.among D.within 17A.gaveup B.agreedwith C.believedin D.returnedto 18A.path B.track C.way D.pavement 19A.confident B.wealthy C.strong D.attractive 20A.skip B.move C.float D.climb

边长是4米的正方形它的面积和周长相等．．判断对错

计算下面各题能简便的用简便方法计算． 17.5÷12.5÷0.8 10.7×[0.6÷1﹣0.98] 10.05÷5+2.01×9

在一幅地图上3厘米表示实际距离3600米这幅图的比例尺是甲乙两地相距600米在这幅地图上的距离是厘米．

在如图中描出下列各点并依次连接构成封闭图形． A59B16C21D81E96．

78×99用简便方法计算是

2.36的小数点先向左移动一位在向右移动三位结果是．

把一个体积是69立方分米的圆柱削成一个最大的圆锥要削去立方分米．

小丽踢了25个毽子如果以30个为标准超过的记作正数不足的记作负数那么小丽踢的毽子数应记作﹣5个．判断对错

递等式计算 1336÷[36﹣29×6] 2350×[120﹣60÷15] 3[285﹣15+20]×3

某市在一带一路国际合作高峰论坛前夕在全市高中学生中进行我和一带一路的学习征文收到的稿件经分类统计得到如图所示的扇形统计图．又已知全市高一年级共交稿2000份则高三年级的交稿数为

在横线上填上＞＜或＝． 1065965 3763760 500厘米50分米 61036130 205502 2千米200米

下面的数中最大的数是

把米长的铁丝平均分成8段每段是全长的每段长是3段长是米．

a＝bab都不为0那么ab．

2a+3.2＝3.2不是一个方程．．判断对错

下面的比中能与38组成比例的是

服装城以85元一套的价格购进一批服装以130元一套的零售价出售当卖出这批服装的时已收回全部进款还获利润1710元该服装城一共购进这种服装多少套

如果＝y那么x与y成比例如果＝y那么x和y成比例．

x1+2x5的展开式中x3的系数为

在一幅比例尺为12000000的地图上量得甲乙两地之间的距离是3.6厘米．如果一辆摩托三轮车以每小时30千米的速度在上午8点从甲地出发问什么时间能够到达乙地

三角形越大它的三个角的和就越大．判断对错

下面图形中是轴对称图形．

冰冰的年龄是爸爸的那么爸爸与冰冰年龄的比是52．．

如图有个三角形．

把下面每一组中的两个分数通分．

有一个角是锐角的三角形叫锐角三角形．判断对错

三年一班有45人上学期体育达标有80%的人及格．及格的有多少人不及格的有多少人

480÷2÷4的商与算式的商相等．

一个三角形的两条边长分别是4分米5分米第三条边一定比分米短．

4÷x＝yx和y成比例．

近似值4.0和4的大小相等精确度一样．．判断对错

从甲地到乙地如果骑自行车每小时行15km4小时到达如果坐公共汽车每小时行30km小明从甲地出发骑1小时后自行车坏了．他又坐公共汽车到达乙地问小明从甲地到乙地的平均速度是多少小明小王是这样算的平均速度＝＝22.5km/h他算的对吗若不对应怎样计算

一个平行四边形与一个三角形的面积和底都相等平行四边形的高是18厘米三角形的高是厘米．

a＝bab都不为0那么ab．

小华1150放学后步行回家1205回到家他平均每分钟走60米．小华家离学校有多远

一个正方形花坛的周长是24米如果把这个花坛改为长方形周长不变长是宽的2倍那么这个长方形花坛的长宽和面积分别是多少

丁丁比奇奇小丁丁今年a岁奇奇今年b岁3年后丁丁比奇奇小岁．

如图是一个水龙头打开后的出水量情况统计图． 1水龙头打开的时间和出水量成比例关系． 2照这样计算出25升水需要秒．

两种相关联的量不成正比例就成反比例．．判断对错

幼儿园有3种玩具各若干件每个小朋友任意拿2件不同种类的玩具至少有个小朋友来拿才能保证有2个小朋友拿的玩具相同．

按要求做． 1三角形ABC中B点的位置用数对52表示那么A点的位置用数对表示． 2画出将三角形ABC绕A点逆时针旋转90°后的图形． 3以B点为圆心在方格纸内画一个最大的圆将三角形ABC与圆重叠的部分涂上阴影阴影部分的面积是cm2．计算时π取3.14

一本书有21页平均每天看这本书的3页占全书的．

妈妈花120元钱买了一件打八折出售的衣服这件衣服原价是元．

解比例 1＝ 2x1.2＝5.6 3＝20x