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如图，在数轴上，点A和点B之间表示整数的点有 个
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如图在数轴上A.点表示数aB.点示数bC.点表示数cb是最小的正整数且ab满足+c－72=0.1a=
大家知道它在数轴上的意义是表示5的点与原点即表示0的点之间的距离.又如式子它在数轴上的意义是表示6的
大家知道它在数轴上的意义是表示5的点与原点即表示０的点之间的距离又如式子它在数轴上的意义是表示6的点
如图一个正方形放置在数轴上它的一对顶点分别与数轴上的原点和表示2的点重合以原点为圆心该正方形的边长为
下列说法中正确的是
A.点A.表示的数是整数
该正方形的面积是无理数
点A.表示的数是无理数
该正方形的面积是分数
如图在数轴上点
表示的数是
，点
，
表示的数是两个连续的整数，则这两个整数为 A.4和5B. -5和-4 C.3和4
-4和-3
如图在数轴上A.点表示数aB.点示数bC.点表示数cb是最小的正整数且ac满足|a+2|+c﹣72=
在数轴上表示不小于－2且小于2之间的整数的点有
3个
4个
5个
无数个
.如图用粗线在数轴上表示了一个范围这个范围包含所有大于1且小于2的数数轴上1与2这两个数的点空心表示
在数轴上﹣2.5与3.5的两点之间表示整数的点有个．
数轴上A.B.两个点之间的距离是2010则AB上表示整数的点有
如图在数轴上点A.和点B.之间表示整数的点有个.
.点A.B.在数轴上分别表示有理数abA.B.两点之间的距离表示为AB在数轴上A.B.两点之间的距离
在数轴上表示-10和10的两点之间不包括-10和10有个点是表示整数的．
长为2个单位长度的木条放在数轴上最少能覆盖_____个表示整数的点最多能覆盖_____个表示整数的点
如图在数轴上表示－和的两点之间表示整数的点有
7个
8个
9个
6个
如图数轴上点A.和点B.之间表示整数的点有个
如图在数轴上点A.和B.之间表示整数的点有__________个.
.如图在数轴上A.点表示数aB.点示数bC.点表示数cb是最小的正整数且ab满足|a+2|+c﹣72
长为7个单位长度的木条放在数轴上最少能覆盖_____个表示整数的点最多能覆盖______个表示整数的
长为2个单位长度的木条放在数轴上最少能覆盖＿＿个表示整数的点最多能覆盖＿＿＿个表示整数的点
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HigherEducationINTHEUnitedStates HighereducationintheUnitedStatesincludesanyprogramofstudyattwo﹣year﹣collegesfour﹣yearcollegesandgraduateschools.Therearemorethan4100communitycommunitycollegescollegesanduniversitiesintheUnitedStates.Four﹣yearcollegesgrantundergraduatebachelor'sdegreesB.A.orB.S..Two﹣yearcollegesoftencalledcommunitycollegesoffertheAssociateofArtsortheAssociateofSciencedegreesA.A.orA.S.Thewordscollegeanduniversityareoftenthesamebutitisgenerallyunderstoodthatauniversitycanoffergraduatedegreesaswell.ThesedegreescanbequitespecializedsuchasaMasterofArtsinaparticularsubjectorevendoctoratedegrees. Americancollegesanduniversitiesmaybepublicprivateorreligiouszōng jiāo 的.Publicuniversitiesareownedbythestates.Studentspaytuition学费atpublicuniversitiesbutthosewhohavelivedinthestateforacertainperiodoftimedonotpayasmuchasstudentsfromoutsidethestate.Theannualaveragecostoftuitionfeesandroomandboardatuniversitieswas$36564in2014.Thesecostshoweverdependonthesizelocationreputation声誉etc.oftheuniversity. Privateandreligiousinstitutionscanbeveryexpensivebecausetheydonotreceivethesametypeoffundingthatpublicschoolsdoalthoughtheymaygetsomemoneyfromthestateforcertainprograms.SomeAmericanprivateuniversitiesareconsideredthebestinthenationifnotintheworldbutthecostsoftheseschoolsareveryhigh.Itisusuallynotnecessarytobeamemberofaparticularregiontoattendthereligiousschool. Lasttherearealsosometechnicalinstitutionsthatareprivatelyownedlikebusiness.Thesetechnicalinstitutesoffertwo﹣yearprogramsinsuchfieldsasautomotiveengineeringbusinessandelectronics.Thetrainingisveryspecializedandthegoalsofthestudentsarespecificallyrelatedtoaparticularoccupation. 1.Whatdegreesdothecommunitycollegesoffer? A.Bachelor'sdegrees B.Master'sdegrees. C.A.A.orA.S. D.Doctoratedegrees. 2.What'sthedistinctivefeatureofpublicuniversities? A.Roomandboardarefree. B.Theyaresupportedbythestates. C.Theaveragecostisover﹩36564peryear. D.Studentsfromdifferentstatespaythesametuition. 3.Whydosomepeoplechoosetoattendprivateuniversities? A.Theyreceivefundingfromthegovernment. B.Theyarelocatednearwherestudentslive. C.Theyareexcellentineducation. D.Theyprovidesomefinancialhelp. 4.Wherecanwepossiblyfindthetext? A.Afashionmagazine B.Astorybook C.Atravelguide D.Agovernmentwebsite
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关于下列生物实验的说法正确的是
Mostdogownersareconvincedthattheirfour﹣leggedfriendsknowexactlywhattheymeanwhentheyusecertainwordslikesitstayortreat.Howeverresearchershavealwayswonderedwhetherdogsreallyunderstandhumanspeechoriftheyrelyonotherinformationtogetthemeaning.Forexampledoesthewordfetchformapictureofastickorballinthedog'smindordoesthedogbringbacktheobjectbasedontheowner'svoiceorgesture?AnewstudybyscientistsatAtlanta'sEmoryUniversityseemstoindicatethatman'sbestfrienddoesindeedknowwhattheownerissaying. Theresearchersbeganbyaskingtheownersoftwelvedogsofvariouskindstotraintheirpetstoidentifytwotoysofdifferentmaterialssuchasatoyanimalandaball.Oncethedogshadmasteredthetasktheytookturnsinsideaspecialscanner.Theownersthentestedtheirdog'slanguageskillbyfirstcallingoutthenamesofthetoystheyhadbeentrainedtorecognizeandthensayingmeaninglesswordssuchasbobbuandbodmickwhileholdinguprandomobjectsthedogshadn'tseenbefore. Thescanssuggestedthatthepartsofthedogs'brainsresponsibleforprocessingofsoundsshoweddifferentbrainpatternswhentheyheardwordstheywerefamiliarwithcomparedwiththeonestheyhadneverheardbefore.Whilethatwasnotenoughtoprovethatthedogswerepicturingtheirtoyswhentheyheardtheworditdidindicatesomesortofrecognition.Theresearchersbelievethisisanimportantstepforwardinunderstandinghowdogsprocesslanguage. Evenmoreinterestingwasthatthedog'sbrainsshowedahigherlevelofneural神经activityatthesoundofunknownwords.Thisistheexactoppositeofwhathappensinhumanbrainswhichgetmoreactiveatthesoundoffamiliarwords.Theresearcherssaythedogsmaybecomecheerfulatthesoundofnewwordstotrytounderstandtheminthehopeofdelightingtheirmasters.DogswanttopleasetheirownersandperhapsalsoreceivepraiseorfoodsaysEmptyneuroscientistGregoryBurnsseniorauthorofthestudy. Howeverthoughyourpetmayunderstandhumanspeechthescientistsrecommendusingvisualsignalsandsmellfortraining.Whenpeoplewanttoteachtheirdogatricktheyoftenusespokencommandbecausethat'swhathumanspreferPrichardsays.Fromthedog'sviewhoweveravisualcommandmightbemoreeffectivehelpingthedoglearnthetrickfaster. 1.What'sthepurposeofthenewstudy? A.Toconvincedogownerstounderstandtheirdogs. B.Toadvisedogownerstotreattheirdogskindly. C.Toprovedogsfollowowners'orderbylistening. D.Totestouthowdogsgetinformationfromowners. 2.Whatdoestheauthorintendtodoinparagraph2? A.Informtheresultoftheresearch. B.Statetheprocessoftheresearch. C.Stresstheimportanceoftheresearch. D.Introducethesubjectsoftheresearch. 3.Howdohumanbrainsanddogbrainsreacttowords? A.Humanbrainsbecomeactiveatunfamiliarwords. B.Dogbrainsbecomedelightedatunfamiliarwords. C.Humanbrainsarenotsensitivetofamiliarwords. D.Dogbrainsshownoresponsetofamiliarwords. 4.Whatdoscientistsadvisetheownerstodoindogtraining? A.Givedogsoralcommand. B.Teachdognewtricks. C.Involvesightandsmell. D.Encouragefasterlearning.
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Thecostofthewholetripshouldbe500dollarsinfigures. A.close B.round C.even D.natural
Rememberbacktowhenyouwereayoungchild.Canyourecallwhoyourheroeswere?Weretheypeopleinyourfamily?WeretheyfrombooksorTVormovies? Duringtheirteenyearsyoungpeoplesearchfortwotypesofheroes.Thefirsttypeofherotheylookforissomeonetheycanadmire.Toooftenhowevertheyconfusesuperstarswithheroes.MostTVormoviesuperstarsaren'treallyheroes﹣﹣﹣they'recelebrities名流productsofthemedia.Thedangercomeswhenyoungpeopleconfusetheheroicwiththefamous.Infactbecausetheydon'thaverealheroespeopleofallagesturntofantasy想象中的heroes.AndthemediainturnfillthisneedwithIndianaJonesSupermanConantheBarbarianJamesBondLukeSkywalkerandotherfantasyfigures. Thesecondtypeofheroyoungpeoplesometimeschoosestandsfordisobedience叛逆towardparentsandrules.AnexampleisBlutoBluntarskyinthemovieAnimalHouse.Blutoisaterribletroublemaker.OfcoursesometeenagersmayactuallyadmireBluto'spersonalqualities. Aretheserealheroes?Notreallybecausewhotheyareandwhattheydoarepurelyadream.Realheroesareonesyouloveandwanttokeepasheroesforever.Celebritiesareeasycomeeasygo. Butdon'tcountrealheroesoutyet.Eveninanagewhenpeoplesaytherearenoheroes﹣﹣﹣onlycelebrities﹣﹣﹣therearecountlessheroes.Therearemanyheroeswhoarenotsowellknown.Theyhaveriskedlifeoranythingvaluableonamatterofprinciple. Everyoneneedsheroestoadmire.Whetherthey'removiestarsrelativesnextdoorneighborsorstrangerswe'vereadaboutweneedthem.Bywhattheydoheroesshowusthatwetoocandosomethingoutstandingevenifweareonlyordinarypeople. 1.Whatproblemdoyoungpeopleoftenhaveaboutheroes? A.Theysearchforheroesintheirdreams. B.Theyneverlearnfromheroes C.Theyareuncertainaboutwhotoadmire D.Theyoftenlovetroublemakers 2.Whatistheauthor'sopinionaboutthetopic? A.Thereareveryfewrealheroes. B.Heroescanbefamouspeople C.Principlescauseheroes'death D.Allpeoplecandosomeheroicdeeds. 3.Youngpeopleneedheroesmainlybecausetheywantto. A.haverolemodels B.becomesuperstars C.admirecelebrities D.lovefantasyfigures 4.Whichofthefollowingcanbethebesttitleforthetext? A.BecomingHeroes B.EverybodyNeedsHeroes C.CelebritiesorHeroes? D.WhyHeroes?
AbeautifulSeptembereveningmy11﹣year﹣oldgrandsonJoshandhisteamwerewarmingupfortheirfirstfootballgameoftheseason. Atsixthe1calledthecaptainsforwardsaidsomethingand2hiswhistle.Thetwoteams3separately.Iwas4.Theotherteamwas5teninchestallerthanourplayers.Itdidn'ttakelongfortheir6advantagetoshow.Theytooka7﹣0leadvery7.Atthehalfthescorestoodat34to6.Josh8minimalplaytime.InthesecondhalftheyusedJoshmoreoften.Thescoreclimbedto40to6. Onceagaintheotherteambegantheir9downthefield.Theirquarterbackthrewtheball.Thereceivercaughtitand10thegoal.Therewasonlyonemaninhis11﹣Josh.Joshdoveand12thatboy'slegswithallhisstrength.ThereceiverdraggedJoshacoupleofyardsand13felldown. OnthenextplaytheirquarterbackshotthroughanopeningandrushedtothegoalbuttherewasJoshagain.Joshtookhimoffhisfeetand14anothergoal.Theyscoredonthelastplay.butitwasn'tJosh's15.Thegameendedwithascoreof48to6. Onthewayhome.Iwantedto16Joshbutheturnedtomewitha17smile.Grandpathatwasa18game. Butyoulost48to6! IknowbutIdidgood. Theboyunderstoodthe19betterthanIdid.Theydidn'twinbuthedidhisbest.Iwasproudofhim.More20hewasproudofhimself. 1.A.player B.referee C.coach D.receiver 2.A.waved B.raised C.threw D.blew 3.A.gathered B.practiced C.celebrated D.wandered 4.A.inspired B.embarrassed C.shocked D.delighted 5.A.intotal B.onaverage C.atlength D.forexample 6.A.speed B.strength C.age D.size 7.A.often B.soon C.regularly D.rarely 8.A.saw B.lost C.expected D.wasted 9.A.break B.search C.charge D.debate 10.A.1etin B.foughtfor C.wentin D.headedfor 11.A.way B.position C.sight D.mind 12.A.maderoomfor B.1ookedupat C.tookholdof D.keptawayfrom 13.A.accidentally B.finally C.deliberately D.gradually 14.A.saved B.gained C.tried D.kicked 15.A.turn B.honor C.fault D.option 16.A.trick B.scold C.praise D.comfort 17.A.sad B.wide C.bitter D.polite 18.A.great B.close C.silly D.vital 19.A.team B.play C.game D.field 20.A.seriously B.fortunately C.specifically D.importantly
下列表述正确的是
Imaginebeingbornwithoutarms.Noarmstohugsomeoneandnohandsto1touch.Orwhataboutbeingbornwithoutlegs?Havingno2todancewalkrunorevenstandontwofeet.Nowputbothofthosescenestogether:noarmsandnolegs.Howwouldthat3one'severydaylife? WithoutanymedicalexplanationNickVujiciccameintotheworldwithneitherarmsnorlegs.Imaginethe4hisparentsfeltwhentheysawtheirbabybeingwhattheworldwouldconsiderimperfectand5.Littledidtheyknowthatthisbeautifullimblessbabywouldonedaybesomeonewhowould6andmotivatepeoplefromallwalksoflife. ThroughouthischildhoodNickdealtwiththe7ofself﹣respectandstruggledwithdepressionand8.AsNickgrewuphelearnedtodealwithhis9andstartedtobeabletodomoreandmorethingsonhisown.He10tohissituationandfoundwaysto11tasksthatmostpeoplecouldonlydobyusingtheirlimbssuchascleaningteeth12hairtypingonacomputeretc.Astime13Nickbegantoeagerlyaccepthis14andachievegreaterthings. Nickgotadoublebachelor'sdegree15inaccountingandfinancialplanning.Bytheageof19Nickhadstartedto16hisdreamofencouragingothersbysharinghisstorythrough17speaking.Hefoundthepurposeofhis18.Nowat27yearsoldhehasaccomplishedmorethanmostpeople.Hehastravelledaround19hisstorywithmillionsofpeople.Heisatrueinspirationalandmotivational20. 1.A.understand B.experience C.know D.prevent 2.A.ability B.interest C.reason D.chance 3.A.affect B.limit C.improve D.design 4.A.calmness B.excitement C.shock D.eagerness 5.A.unique B.abnormal C.extraordinary D.unqualified 6.A.teach B.organize C.inspire D.comfort 7.A.challenge B.management C.question D.load 8.A.tiredness B.disappointment C.loneliness D.relief 9.A.fault B.disability C.shortage D.willpower 10.A.devoted B.attended C.adapted D.stuck 11.A.accomplish B.attain C.find D.reduce 12.A.wearing B.brushing C.cutting D.losing 13.A.wentup B.wentahead C.wentaway D.wentby 14.A.situation B.position C.state D.emergency 15.A.researching B.majoring C.aiming D.choosing 16.A.cometrue B.undertake C.realize D.support 17.A.meaningful B.motivational C.significant D.strong 18.A.action B.behavior C.existence D.communication 19.A.telling B.recalling C.sharing D.writing 20.A.doctor B.speaker C.writer D.driver
Therearevariousaspectsthatgointomakingasuccessfulschoolandsuccesscanbemeasuredinvariousways.Oftentheteachersarepraisedforaschool'ssuccessandblamedforitsfailure.Yetinorderforaschooltobeeffectiveitmustbeaplacewhereteachingandlearningcaneasilytakeplaceandthatrequiresthehardworkofmorethanjusteducators.Studentsmusttakelearningintotheirownhandsandfeelasifwhattheyaredoingisasimportantasitactuallyis.Thiscanonlybedonewiththecooperationofeveryadultthatisinvolvedinthestudents'life.Someoftheseindividualsoftengounnoticedyettheroletheyplayinthestudents'livesisimmeasurable. Intheschooladministrativeassistantsgreetstudentsatthestartofthedayandansweralargequantityofquestions.Whenanassistantremembersastudent'snameorevensomethingspecialaboutthatstudentitcommunicatestohimthatheiscaredfor.Theassistantcanalsogivethatextraencouragementforastudenttomakebetterchoicesespeciallywhentheyarevisitingtheprincipal'soffice. Meanwhilethoughcafeteriaworkershaveashortspaceoftimetointeractwithstudentstheycanmakeabigdifferenceaswell.Beyondmeetingnutritionalneedscafeteriaworkersmayalsoonoccasionmeettheemotionalneedsofthestudentstheyserve.Studentsbenefitfrompositiveinteractionwithadultsandcafeteriaworkersmaygivethatextrabitofencouragementthatachildneeds. Custodians管理员areusuallyunderappreciatedforwhattheyoffertoschools.Theyhavetobeknowledgeableabouteverythingfromcleaningtofixingthemostintricate复杂的tools.Theygettoschoolearlyinthemorningbeforeteachersarriveandlockuplateatnightafterthelaststudenthasleftfromtheafter﹣schoolevent.Theyalsomakesureteachersareequippedwiththenecessaryitemsandpreparetheroomssothattheyarereadyforlearning.Agreatcustodianalsogivesthatkindwordorextrasmiletothatstudentwhoneedsitmost. 1.Thepurposeofthepassageisto. A.emphasizetheroleteachersplayinaschool B.highlightthecontributionsofotherstaffatschoolbesidesteachers. C.telluswhomakethegreatestcontributionstoaschool D.explainwhatcontributestothesuccessofastudent 2.Ifanassistantremembersastudent'snamethestudentwillfeelthat. A.heispaidparticularattentionto B.heisspecial C.hehasdonesomethingwrong D.hehasmadeprogressinstudy 3.WhichofthefollowingisTRUEaboutcafeteriaworkers? A.It'senoughforthemtocookforthestudents. B.It'shardforthemtointeractwiththestudents. C.Theyhavethemostinteractionwithstudentsatschool. D.Theycanalsomeettheemotionalneedsofthestudents. 4.Howdoestheauthorfeelaboutthestaffmentionedinthetext? A.Disappointed. B.Dissatisfied. C.Appreciative. D.Doubtful.
﹣﹣﹣Youwantcreamandsugarinyourcoffee? ﹣﹣﹣ A.Asyoulike B.Yesplease C.Pleasedo D.Yeswithpleasure
已知人类免疫缺陷病毒HIV流感病毒都是RNA病毒并且HIV通过T淋巴细胞表面的CD4受体识别T淋巴细胞并侵染进入细胞内．请回答下列问题1为了区别个体生活的外界环境人们把由构成的液体环境叫做内环境．调节网络是机体维持稳态的主要调节机制．2抗体在流感治愈过程中的作用是．3艾滋病患者的恶性肿瘤发病率远高于正常人这主要是由于患者免疫系统的功能严重下降．4科学家正研究将病毒引诱到导致其死亡的陷阱细胞中以防止病毒增殖．他们用CD4受体修饰过的成熟红细胞引诱HIV识别并侵染已取得阶段性成果．请简要说明其机理．
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A.点A.表示的数是整数 该正方形的面积是无理数 点A.表示的数是无理数 该正方形的面积是分数
，点 ， 表示的数是两个连续的整数，则这两个整数为 A.4和5B. -5和-4 C.3和4 -4和-3
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