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计算下列各题（能简算的要写出简算过程） 62.8﹣+37.2﹣； （﹣÷2）×； ÷7+×； ×[2÷（﹣）]．
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短文改错 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.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\划掉. 修改在错的词下画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11处起不计分. Ihavelearntsomuchthingsfrommyparents.Theyshowmewhentobeatolerant宽容person.Whenchildrenmakemistakesmostparentswhoarehardwiththeirkidswillbeveryangry.Theysaysomehurtingwordsmakingtheirchildrentofeelsad.Besidesmyparentsaredifferentfromthem. EverytimeImakemistakesmyparentsprefertoeducatemeinagentlyway.I'msogratefultomyparentsallthattheyhavedone.Beingtolerantofotherpeople'smistakesarethebestwaytosolveproblems.Yourkindactwillbegreatlyappreciating.Betolerantofothersothattheywillbetolerantinturn.
2.5分图为ABC三种物质的溶解度曲线请据图判断下列叙述中不正确的是
请阅读下面短文并按照要求用英语写一篇150词左右的文章. PleaseputyourphonedownDaddywehaven'tfinishedthestory!Hearingtheseheartfeltwordsfrommyfouryearolddaughterwasanuncomfortablewakeupcall.HowhadIlettheshinyelectronicboxinmyhandtakesomuchofmyattentionthatitcouldeveninterruptashortbedtimestorywithmypreciouschildren? It'snoexaggerationtosuggestthatourmobiledevicesareindangeroftakingoverourentirelives.Timemagazinefoundthat68%ofuserstaketheirdevicestobedwiththem20%checktheirphoneseverytenminutesandonethirdreportfeelinganxiouswhenbrieflyseparatedfromtheirbelovedgadget.AccordingtoOstermanresearch79%ofrespondentstaketheirwork﹣relateddeviceonvacationand33%admittohidingfromfamilyandfriendsinordertocheckFacebookandTwitter.It'shardtodenythattheseareworryingtrends. 【写作内容】 1.用大约30字概括上文和图表的主要内容 2.结合上述信息用大约120字论述 1科技的发展是否意味着人们生活更幸福.选择是或否并论述你的观点 2你认为在生活中应当如何处理人和科技的关系. 【写作要求】 1.写作过程中不能直接引用原文语句 2.作文中不能出现真实姓名和学校名称 3.不必写标题. .
根据短文内容从短文后的选项中选出能填入空白处的最佳选项.选项中有两项为多余选项. Manyofusfeelsleepyinwinterbutotherspeciesoftentakeitastepfurtherandhibernate冬眠.36Thebodyslowsdownandbreathingtemperatureandmetabolicandheartratealldecrease.Dormice睡鼠headundergroundandhedgehogs刺猬hunkerdownintheirnests. Hibernationseemstodothemgood.Buthumancannotbeddownforlongperiods.37Toworkoutwhywedonotfirstweneedtofindoutwhyanimalsdo.Themostobviousreasonforhibernatingistoavoidthecold.Conditionsareharshandthereislittlefoodtoeatasfewerplantsaregrowing.38Thentheyliveoffbody﹣fatreservesuntilit'stimetowakeup. Buta2015studyofdormicefoundthattheycontinuedhibernatingevenwhencoldconditionshadended.39Thekeyissueseemedtobeconnectedwiththeirmainfoodbeechtrees.Thedormiceneedtheirseedstoreproduceorforthebabydormicetogainenoughbodyfat.Inaharvestyeartheyproduceplentyofseeds.Somehowthedormicecouldpredictit.Otherwisetheystopreproductiontheseyearsandincreasetheirsurvivalbystayingunderground. 40Bystayingoutofsightthedormiceavoidedbeinghuntedbytheirpredators天敌likeowls.Untilrecentlypeoplethoughthibernationwasjustaboutenergysavingadefenseagainstcoldweatherandfoodshortageandnowwethinkit'smorepredatoravoidance.Thesurvivalratesinhibernationarecloseto100%. A.Soobviouslythereareotherreasons. B.Theywerehibernatingundergroundtosaveenergy. C.Hibernationisanextendedperiodofenergy﹣savingstate. D.Allkindsofanimalshibernatefrominsectstobirdsandprimates. E.Whyifitissobeneficialdowenothibernate? F.Thedormicehadanotherreasontostayunderground. G.Somanyanimalsfattenthemselvesupduringsummer.
2.5分下列选项属于化学变化的是
化学用语是学习化学的基本工具请用化学符号填空． 1地壳中含量最多的金属元素 22个氮分子 3硫酸亚铁 4最简单的有机物
如图是实验室的部分实验装置图回答有关问题 1写出仪器名称ab 2实验室常用过氧化氢溶液和二氧化锰制取氧气若要控制反应速率要收集较为纯净的氧气应选择的发生和收集装置是填字母写出该反应的化学方程式．
﹣I'mhungry.Doyouwanttogetmuchlunchnow? ﹣Sure.Let'strytheSafariCafé.I'minthe______forahamburgerandFrenchfries. A.emotion B.mood C.fancy D.vision
AchancemeetingbetweentwomenwhorealizedtheyhadbothbeenabusedinthesameSurreychildren'scarehomehasledtoacampaignthathasseenhundredsofformerresidentsclaimingtheywerealsovictimsofphysicalemotionalandsexualabuse. MusicproducerRaymondStevensonphysicallyabusedduringhistimeattheShirleyOakshomeinthe70smetachildhoodfriendlastyearwhorevealedhe'dbeenabusedattheinstitution.WithinafewmonthstheShirleyOaksSurvivorsAssociationSOSAwashundredsstrong. ThesouthLondonproductionofficefromwhereStevensonpromotedmusicstarslikeJessieJnowlooksmorelikeapoliceincidentroom.Amaponthewallincludesdetailsofstatementsfromhundredsofformerresidentssuggestingphysicalandemotionalabusewasroutineatmanyofthehousesonthe72﹣acreShirleyOakssite. Wehavebeenincontactwithover300peopleandthestorieswearegettingarejustterribleStevensonsays.Everytimeweinterviewsomeoneandhearaboutwhathappenedtothemitbringstearstooureyes.Relivingsomeofthehorrorstheywentthroughagainhasn'tbeeneasy. Therehavebeentwomajorpoliceinvestigationsintoabuseatchildren'shomesinSouthLondonandthreepeopleincludingaswimminginstructorWilliamHookhavebeencondemnedforoffencesrelatingtoShirleyOaks. Anotheroperationiscurrentlyon﹣goingbutSOSAhavelostfaithintheauthoritieswhotheyclaimhavecovered﹣upthewholepictureofabuseatShirleyOaks.Wedon'ttrustthemandthat'swhywehavedecidedtodothiscampaignourselvesStevensonexplains. TheShirleyOakscampaignersarepartofawiderphenomenonasurvivoractivismthatischangingthebalanceofpowerinrelationtochildabuse.Whereoncevictimswereignoredorsilencednowtheyarecomingtogetheroftenthroughsocialmediaformingsupportgroupsandbuildinganincreaseofnoisethattheauthoritiesareforcedtoacknowledge. AcoupleofweeksagodozensofformerShirleyOaksresidentscrowdedintoaLambethcouncilmeetingtheauthoritywhichranthehomeuntilitsclosureinthemid﹣1980s.Councilloraftercouncillorspokeoftheirshameatwhathadbeenallowedtohappentochildrenintheircare. Amongthecrowdwastheaward﹣winningauthorAlexWheatlewhohaswrittenabouttheabusehesufferedasachildatShirleyOaks.WehavenotcomeheretogotowarwiththecouncilwehavecomeheretogainyoursupportWheatletoldthemeeting. TheShirleyOaksassociationisdoingmorethancompilingevidence.Itisusingmusictopressitscase.AsongentitledDon'tTouchItIt'sMineincludespersonaltestimony证词fromvictims.Iwasabusedmentallyphysicallyemotionallyandviolentlythetrackbegins.Oftheoriginal16ofus12havekilledthemselves… We'renotgoingtobetoldliesanymoreStevensonexplains.Wearenotgoingtoleaveitinthehandsoflawyerspoliticiansorcouncilofficialstotelluswhathappenedtous.Wewanttodiscoveritourselvesandweknowmusicanddanceandpoetryarewaysthatcantellagreaterstory. 58.WhywasSOSAsetup? A.Toshowsympathyfortheabusedchildreninsociety. B.Torevealtheabuseatachildren'scarehome. C.Tofindthelivingvictimsfromacarehome. D.Toaidthosepeopleabusedatayoungage. 59.Thecrimeagainstchildrenwasnotknowntothepublicintimebecause. A.thepolicerefusedtolookintoit B.thecasewasignoredforabsenceofevidence C.thesituationofabusewasnotserious D.thevictimswereforcedtokeepsecret 60.Fromthepassagewecantell. A.theformerlocalauthoritiesmusthaveneglectedtheirduty B.twelveofthesixteenchildrenwerekilledinShirleyOaks C.allthepeoplecommittingoffencesinShirleyOakshavebeenarrested D.theformervictimsdependmuchonthepoliceforinvestigation 61.CampaignersoftheSOSAhavetakentheactionof. A.collectingevidenceforthepolice B.creatingmusicforthecampaign C.goingtowarwiththegovernment D.turningtolawyersforassistance.
Smokingissoharmfultopersonalhealththatitkills______peopleeachyearthanautomobileaccidents. A.sevenmoretimes B.seventimesmore C.morethanseventimes D.seventimesasmany
Televisionhasturned88yearsoldonSeptember72015andithasneverlookedbetter.Initsyouthtelevisionwasapieceoffurniturewithatinyroundscreenshowingunclearpicturesoflowbudgetprograms.Inspiteofitsshortcomingsitbecamewell﹣received.Between1950and1963thenumberofAmericanfamilieswithatelevisionjumpedfrom9%to92%ofthepopulation. Astheaudiencegotlargerthetechnologygotbetter.Televisionsetsbecamemorereliablethroughthe1960s.Bothofthereceptionandthepictureimproved.Themajornetworksstartedbroadcastingprogramsincolor. EvengreaterimprovementswerecomingaccordingtoSanfordBrownwhowroteanarticleforthePostin1967.Surprisinglyjustabouteverypredictionhemadeinthearticlebecameareality.ForexampleAllsetsinthenotdistantfuturewillbecolorinstruments.HealsopredictedthatTVsetswouldbecomesmallersimplermorereliableandlessexpensiveandmayforeverputtheTVrepairmanoutofwork.Smallersetsdonotofcoursemeansmallerscreens.TVengineersexpectscreenstogetmuchbigger.Howevertoday's3DTVisevenfartherawayifit'scomingatall.Thereissomedoubtwhetherthepublicwouldbeeagertopayforitinviewofpeople'scoldreceptiongivento3Dmovies. ButthetechnologywiththegreatestpotentialaccordingtoBrownwascabletelevision有线电视whichwasstillinitsearlystagesthen.Ashepredictedthefutureofcabletelevisionwashighlyinteractive.Itwasn'tcabletelevisionthatgaveAmericanstheirelectronicconnectiontotheworldhowever.ItwastheInternet.Heevenforesawthefutureofficeusingpicturephonesbigscreentelevisionsforconferencesandcomputersprovidinginformationatthetouchofabutton. BrowneversaidThefutureoftelevisionisnolongeraquestionofwhatwecaninvent.It'saquestionofwhatwewant. 1Whatcanweinferabouttelevisionsetsinthe1960s? A.TheywereverypopularwithAmericans. B.Thereceptionshowednoimprovement C.Theyshowedblack﹣and﹣whitepictures D.Theywereoutofordernowandthen 2WhichofthefollowingsdidSanfordBrownfailtopredict? A.Television'sgoodquality. B.Theinventionof3﹣DTV. C.Thefutureoffice'smodel D.ThepotentialofcableTV. 3Whatisthetextmainlyabout? A.Theshortcomingsoftelevision. B.Thebrightfutureoftelevision. C.Thedevelopmentoftelevision. D.Theinventionoftelevision.
WritteninthefirstchapterofthebookPrideandPrejudiceisanextraordinarysentenceofwhichevenapersonwhohashadonlyabrieflookuponthebookwillnotfailtoreceiveadeepimpression﹣﹣﹣Itisatruthuniversallyacknowledgedthatasinglemaninpossessionofagoodfortunemustbeinwantofawife.IntermsofSherlockHolmeswe'dbetteralterthesentenceintoItisafactuniversallyacceptedbyreadersthroughouttheworldthatanexcellentbookinpossessionofourfamousdetectiveSherlockHolmesisundoubtedlyamasterpieceofalltimes.PerhapsthisisoneofthemostobviousexplanationsfortheincomparablepopularityofHolmesseriesinthefieldofdetectivestories.OverwhelmedbytherecommendationsprovidedbymyfriendsIdecidedtotakealookonthisSherlockHolmesandtheDuke'sSonoriginallypublishedbyOxfordUniversityPress. AsawholethisbookisaboutacaseconcerningtheDuke'smissingson.ArthurtheDuke'ssonwasfoundoutinacertainmorningtohavedisappearedaccompaniedwithwhichwasalsothedisappearanceoftheGermanteacher.TheschoolmasterDr.HuxtablethenturnedtothefamousdetectiveofthetimeSherlockHolmesforhelp.RealizinghowtoughandimportantthecaseisHolmesimmediatelymadeuphismindtoacceptthecaseandfollowedDr.HuxtablebacktoMackletonbytrain.HavingformedaroughideaaboutthewholematterHolmeslookedintothecaseimmediatelyandhadacarefulinvestigationoftheentireareashortlyafterthearrivalduringtheprocessofwhichhediscoveredthebodyoftheGermanteacherHeidegger.Finallyprimarilyduetohisoutstandingabilityasadetectivehemanagedtorevealthemystery. HavingoncestartedreadingthisfictionIwascompletelyabsorbedinthemysteriousstory.Atthebeginningunlikeotherdetectivestoriesthisstoryfirstdescribestheclient'sstrangebehavioratlengthtoindicatetheseverityoftheincidentinordertoattractthereaderstocontinuereadingit.Asisknowntoallvividdescriptionisessentialtodetectivestoriesasitmakesthestorymoreauthenticandattractive.ThereforetryingtopresentarealworldtohisreadershipSirArthurConanDoyleauthoroftheoriginalHolmesserieshasskillfullyarrangedtheplotsofthewholestoryfromtheperspectiveofDr.WatsonafriendofHolmes'.Inthiswayheelaborately精心describedeverysceneandcharacterinthebook.Apartfromthespecialstarttheendingofthewholestorybeingdramaticbutreasonableiscertainlyanoutstandingone.AfterallexcepttheauthorhimselfwhoknowsthattheDuke'sseeminglyordinarysecretaryisinfacttheDuke'sbastard私生子?InadditionwhoknowsthattheDukeactuallyhasalreadybeenacquaintedwiththewholethingbeforeHolmessolvesthiscomplicatedproblem?Yetsurprisingasitisthisendingseemssonaturalthatitfitsalltheplotsofthestoryperfectlywell.ClosingmyeyesIcanevenseethestoryhappeningjustlikewatchingafilm. AsfarasIamconcernednothingismoreadmirableandsurprisingintheheroSherlockHomesthanhisprofoundknowledgewhichhascertainlyassistedhimalotwhenhewasstudyingthecase.TakethebicycletyresforinstanceHolmesiscapableofrecognizing42differentvarietiesofbicycletyres.ExceptforhisillimitableknowledgeHolmesalsospecializesinarrangingthefactsinorderandthenfindingthefactleadinghimtoagreatdiscoveryoreventhetruthitself.InthiscaseaftergettingridofunrelatedfactsSherlockHomeseventuallygraspedtheclueanddiscoveredtheamazingfact. Needlesstosayasaworld﹣renownedmasterpieceSherlockHolmesandtheDuke'sSonhasattractedandisstillcharmingnumerousreadersfromallcornersoftheworldandpeoplefromallwalksoflife.TheHolmesserieshasalreadysetupastandardagainstwhichallthefollowingdetectivefictionsaremeasured.SherlockHolmesbeyondalldoubthasbeenanamefirmlyrootedinpeople'smemories.AlthoughDr.Watson'sclosingTheCaseBookofSherlockHolmesin1927wasagreatpitytothereadersthediscontinuanceoftheentireHolmesseriesmayhaveactuallyaddedtothelegendarystatureofSherlockHolmes. 66.WhydoestheauthormentionthebookPrideandPrejudice? A.Toshowhis/herimpressiononit. B.TochangeasentenceinittoevaluatetheHolmesseries. C.Toquoteasentencetodirectlyillustrateitsimpressiveness. D.Tostatethereasonwhyhe/shebeganreadingSherlockHolmesandtheDuck'sson. 67.Manyfactorscontributetotheauthor'spositiveattitudetowardthebookEXCEPTthat. A.thedetaileddescriptionofaclient'sstrangebehaviorarousesthereaders'interest. B.theplotsarewelllaidoutandallscenesandcharactersareartfullypresented. C.thebookisevenadaptedintoafilmandtheauthorreallyenjoyswatchingit. D.itsendingissosurprisingthatitmakestheauthordeeplyimpressed. 68.WhatkindofapersonisSherlockHolmesaccordingtothepassage? A.KnowledgeableB.Arbitrary.C.Mysterious.D.Courageous. 69.Howisthepassageorganized? 70.What'sthepassagemainlyabout? A.ItmainlyintroducestheplotsofthebookSherlockHolmesandtheDuck'sson. B.It'smainlyabouttheauthor'sattitudetowardsSherlockHolmes. C.It'smainlyaboutthethoughtsoftheauthorafterreadingSherlockHolmesandtheDuck'sson. D.It'smainlyacomparisonbetweenthebookPrideandPrejudiceandtheHolmesseries.
Inthe1500'swhentheSpanishmovedintowhatlaterwastobecomethesouthwesternUnitedStatestheycameacrosstheancestorsofthemodern﹣dayPuebloHopiandZunipeoples.TheseancestorsknownvariouslyasthebasketmakerstheAnasaziortheAncientoneshadlivedintheareaforatleast2000years.Theywereanadvancedagriculturalpeoplewhousedirrigationtohelpgrowtheircrops. TheAnasazilivedinhousesconstructedofadobe土砖andwood.Anasazihouseswereoriginallybuiltinholesandwereenteredfromtheroof.Butaroundtheyear700A.D.theAnasazibegantobuildtheirhomesabovegroundandjointhemtogetherintogroupsofmultistoriedlargebuildingswhichtheSpanishcalledpueblosorvillages.Separateroomsunderthegroundinthesepueblos﹣knownaskivas﹣weresetasideforreligiousceremonies.Eachkivahadaholethatwasbelievedtoleadtotheunderworld.Thelargestpuebloshadfivestoriesandmorethan800rooms. TheAnasazifamilywasmatrilinear母系遗传.Theholyobjectsofthefamilywereunderthecontroloftheoldestfemalebuttheactualceremonieswereconductedbyherbrotherorson.Womenownedtheroomsinthepuebloandthecropsoncetheywereharvested.WhilestillgrowingcropsbelongedtothemenwhoincontrasttomostotherNativeAmericangroupsplantedthem.Thewomenmadebasketsandpotterythemenmadeclothandjewelry. Eachvillagehadtwochiefs.Thevillagechiefdealtwithlanddisputes争议andreligiousaffairs.Thewarchiefledthemeninfightingduringoccasionalconflictsthatbrokeoutwithneighboringvillagesanddirectedthemenincommunitybuildingprojects.ThesolidpoliticalandsocialorganizationoftheAnasazimadeitalmostimpossibleforothergroupstoconquerthem. 32.WhatdoweknowabouttheAnasazipeople? A.Theyweregoodatgrowingcrops. B.TheywereimmigrantsfromSpain. C.Theystoredtheircropsincaves. D.TheyhadbattlesagainsttheSpanish. 33.WhatdoestheunderlinedwordtheyParagraph3referto? A.Women. B.Pueblos. C.Rooms. D.Crops. 34.Whatcanbeconcludedfromthetext? A.TheAnasazibenefitedfromtradewiththeSpanish. B.ThedivisionoflaborinAnasazisocietywasclear. C.TheSpanishcausedharmtoAnasazisociety. D.ConstantconflictsexistedinAnasazisociety. 35.WhatcanbestdescribetheAnasazi? A.Aggressive. B.Honesty. C.United. D.Selfish.
2.5分下列做法中正确的是
Ipromiseyoutherewillneverbeaperfecttimetodoanythinginyourlife.36willeverfeel100%certainormakeperfectsensetoyouandeveryoneelse.Therewill37beaperfecttimetofallinloveortotraveltheworld.Youwillneverhaveenoughtrainingenoughpreparationorenoughmoney.And38thisevenwhenyoufeelreadytotakeabravestepintothe39otherswilllikelytryto40yououtofit.Becausetheywon'tfeelreadythemselvesandyourambitionandbraverywill41theirlevelsofcomfort.Butyoudon't42themanexplanationoranyotherpersonal43youdon'twanttomake.Thisisratherdifficultto44atfirst. Waitingtofeel100%readyorsureisthe45wayinwhichwecheatourselvesoutofwonderfullifeexperiences.Ichallengeyouto46freeyourselffromthisself﹣limitingstateofmind.Bookthatplaneticketevenifyoufeellotsof47.Signupforthateducationalcourseevenifyouhavenoidea48itwillgo.TrustmewhenItellyouitwillallcometogetherforthe49. Whenyoumeetyourdreamswith50whenyoumeetthemwithmentalandphysicaldevotionyou51yourtrustintheactofLIVING.Youmakeyourdreamsa52insteadoflineitemsonalist.Andthat'sgoodbecauseyourdreamsare53tobeexperiences.Youhaveto54themoutintherealworldtoknowifthey'repossibleandworthwhileadventuresinthelongrun. Asyou55onthisnewjourneyoflivingrememberthatsomepeoplearoundyouwillnaturallybetakenaback.Butaslongasyouaren'thurtingthemyoudon'towethemanythingthattakesawayyourpowertomoveforwardwithyourlife. 36.A.Something B.Nothing C.Anything D.Everything 37.A.never B.always C.occasionally D.forever 38.A.despite B.for C.from D.after 39.A.impossible B.unknown C.beautiful D.true 40.A.help B.cheat C.talk D.get 41.A.improve B.remove C.increase D.challenge 42.A.offer B.give C.allow D.owe 43.A.excuse B.decision C.sacrifice D.profits 44.A.refuse B.grasp C.admit D.confirm 45.A.hardest B.bitterest C.easiest D.dullest 46.A.automatically B.casually C.vainly D.consciously 47.A.uncertainty B.comfort C.anxiety D.hopelessness 48.A.how B.when C.why D.whether 49.A.worse B.better C.closer D.deeper 50.A.difficulty B.doubt C.intention D.success 51.A.carry B.remove C.experience D.invest 52.A.reality B.priority C.burden D.relief 53.A.meant B.listed C.realized D.entitled 54.A.check B.bring C.work D.test 55.A.wander B.rest C.progress D.hesitate
2.5分类推是学习化学的重要方法下列说法正确的是
LiMingyangwho______asthemaincenterontheChineseWomen'sBasketballTeamfortwoyearsisnowamemberofaJapanesebasketballclubwhichisconsideredshamefulbymanyChinese. A.hasserved B.hadserved C.served D.wasserving
2.5分下列物质中属于纯净物的是
阅读下面材料在空白处填入适当的内容1个单词或括号内单词的正确形式. ShanxinoodlesAmatterworthbeingproudof AcommonlyusedgreetinginChinaisthequestionHaveyoueaten?Itindicatesthe61importantoffoodinChina.TheChineseare62extremeproudoftheircuisine烹饪.ForexampleShanxitakesfulladvantage.Itisfamousforitsnoodles63makeofwheat.Ithasarecordedhistoryofmorethan2000yearsinmakingwheat﹣flournoodles. EverykindofnoodleimaginablecanbefoundinShanxi.EvenMarcoPolo64inspirebythemakingoftheShanxinoodleswhichledhimtotaketherecipesbacktoItalyandEurope.65mostpopularShanxinoodleisthedaoxiaomian.Thisnoodleisshavedfromagiantblockofdough面团hoistedoverthechef'sshoulder.Thenoodlesareshavedoffdirectlyintoboilingwater.Thereisaphrase66describesthenoodle﹣makingprocessOnenoodleinthe67boilwateroneflyingintheairandonejustbeingcut. Thenoodlesareusuallyservedinasmallbowlmixed68freshvegetables.AsaspecialrefinementyoucanputsomeShanxivinegarontop.Theextraagedvinegarisatypicalproductoftheregionaswell. OnecanfindhandmadenoodlesalloverChinatoday69Shanxiprovinceisspecial.It's70theartofnoodle﹣makingreacheditstop.
Onceyouhavean______writtenplanthenexttrickistolearnhowtoworkiteffectively. A.solid B.abstract C.intermediate D.temporary
﹣SamcanyoutellmewhatIRLmeans? ﹣Itmeansinreallife________talkingwithsomeoneontheInternetoroverthephone. A.inresponseto B.inrelationto C.inproportionto D.asopposedto
某碳酸钠样品中含有一定量的氯化钠．为测定其纯度取20g样品于烧杯中加入90g水搅拌形成不饱和溶液往溶液中滴加氯化钙溶液100g至恰好反应反应后过滤称得滤液的质量为200g． 1恰好反应产生的沉淀质量为g． 2求样品中碳酸钠的质量分数 3求反应后滤液中溶质的质量分数
马边矿产资源丰富．已探明的矿藏有磷石膏煤铅锌铜铁等15种矿产．其中查明资源储量的有磷煤石膏石英砂岩石灰岩重晶石粘土铅锌铜铁等102余种．尤以磷矿最为丰富储量24.76亿吨．国家已将马边磷矿列入“攀西﹣六盘水国土规划”“金沙江下游国土综合开发规划”“川南国土开发规划”和“马边河流域国土综合开发规划”被四川省定为全省第二磷矿基地． 1在下列物质中既是煤的燃烧产物又会与空气中的水蒸汽形成酸雨的是 ①二氧化硫②粉尘③二氧化氮④臭氧⑤一氧化碳 2磷在氧气中燃烧发光放热产生大量的白烟．其白烟主要成分是五氧化二磷请写出五氧化二磷中磷元素的化合价为 3写出用一氧化碳和赤铁矿炼铁的化学方程式 4矿物的储量有限而且不能再生．防止金属的腐蚀是爱护金属资源的一种重要途径．实验室可用盐酸除铁锈其化学方程式为 5将一定量的金属锌放入盛有氯化铜和氯化亚铁的混合溶液烧杯中待反应后过滤得到滤渣和滤液往滤渣中滴加盐酸有气泡产生则滤液中一定不含溶质是
2.5分“送茶要送竹叶青喝茶要喝马边茶”．马边盛产茶叶已跃居“全国十大生态产茶县”和“全国重点产茶县”的榜单享誉全国．其茶叶中的茶多酚是形成茶叶色香味的主要成分之一具有解毒和抗辐射作用化学式为C22H18O11下列有关茶多酚的叙述正确的是
TheWorldHealthOrganizationWHOsaidthatprocessedmeatmayleadtocancer.Doyoustilldareeatcancer﹣linkedprocessedmeat?Herearesomecommentsonthewebsite. BillAustraliaI'dratherliveashortpleasantlifethanalongunhappyonedenying拒绝给予myselftastyfoodjustbecausesomeexpertssayit'snothealthy.Weshouldallenjoytheonelifewehave﹣ifIhadlistenedtoeverypieceofhealthadviceIwouldnevergoanywhereeatanythingorenjoylifeinanyway.SoIwon'tchangemyhabit.IamgoingtohaveabaconsandwichglassofwineburgercanofcokewheneverIfeellikeit. TimAmericaIsmeatreallyasbadassmoking?Idon'tthinkso.AccordingtotheWHO34000peopledieworldwideperyearbecausetheyeatprocessedmeat.In20128.2millionpeoplediedofcancerworldwide.Thatmeansifyoueatalotofprocessedmeatyouhaveachanceofbeingamongthe0.41percentofpeopledyingofcancerbecauseofprocessedmeat.I'lltakethechance. HelenSwitzerlandTheWHOdoesn'tsaythatjustonebiteofmeatcausescanceritisrathersayingthatpeopleshouldvarytheirdiet.Peoplewhoeatmoremeatoftenhaveotherunhealthyhabits.Theyusuallyeatfewerfruitsandvegetablesandtheyalsooftenexerciseless. VanChinaPerhapsthisreportwillmakepeopleconsiderbecomingvegetarians素食者.Soforyourhealththeenvironmentandfuturegenerationsitisnotdifficultitjustneedsachangeofattitude.Thereisavastvarietyofotherdeliciousfoodavailabletoenjoy. 21.WhatifBillhastochangehishabit? A.He'llbecomeavegetarian. B.He'llliveapleasantlife. C.He'llfeelunhappy. D.He'llgoonadiet. 22.WhatdoesTimthinkabouteatingprocessedmeat? A.Veryunhealthy. B.Quitesafe. C.Fullofrisks. D.Notworthwhile. 23.WhatmaybeHelen'sresponsetoWHO'swarning? A.Caringlittleaboutit. B.Eatingwhatevershelikes. C.Varyingthedietanddoingexercise. D.Takingadietwithoutmeat. 24.Whohavethemostsimilarviewpoints? A.BillandTim. B.TimandHelen. C.HelenandVan. D.BillandVan.
WhenIsawmy10﹣year﹣oldavoidingthedirtyplateinthesinkormy8﹣year﹣oldfeelinguncomfortableaboutthewetsandinherhandsI'mremindedofatimewhenIwasunwillingtogetmyhandsalittledirty. Myparentsowneda500﹣acrefarminMontanatoraiseanimalssuchascowssheephorsesandsoon.Itwasduringthetimeofnewlifeanewbornlamboracalfthatmyfavoritechildhoodmemorytookplace.OneexceptionallycolddayIwascheckingonthesheepwithmymotherwhenshespiedaewe母羊introuble.Thepoorthingwastryingtodeliverherbabylambandneededourhelp.Mymothercalmlyheldtheewe'sheadandinstructedmetograbholdofthetwoprotruding突出legs. Ihesitatedandmusthavehadquitealookofpaniconmyyoungface.TheslimylittlethingsweredefinitelynotsomethingIwantedtotouch.ButIworkedupmycourageandwrappedmyfingersaroundthem.Icanstillrecallthefeelofunexpectedlyweaklegsandtheirsharplittlehoovesasifithappenedyesterday. MyheartpoundedinfearandexcitementasIpulledwithallmystrength.ThelambwasdeliveredsafelyandI'dneverseenanythingsobeautiful. IwasnostrangertoseeingfarmanimalsbeingbornbuttohaveahandinitwassomethingItreasuredthenandwilltreasureforever.IrememberfeelingexcitedwithdelighttoseemylambbeinglickedcleanbyhermotherandI'msureeveryonegotverytiredofhearingmetellandretellmyheroicstory.LookingbackI'msogladthatIdidn'trefusetogetmyhandsdirty.IfIhadthewonderfulmomentandthepreciousmemorywouldhavebeenlost. 24.Whatimpressedthewritermostduringherchildhood? A.Herdirtylittlehands. B.Herparents'largefarm. C.Helpingdeliverababylamb. D.Raisinganimalsonthefarm. 25.Howdidtheauthorfeelwhenshewasaskedtohelpaewedeliverherbaby? A.Somesympathy. B.Ratherfrightened. C.Quiteastonished. D.Highlydelighted. 26.Whatpointdoestheauthortrytomakeinthelastparagraph? A.Itisnotunusualtoseeanewlifecomingintotheworld. B.Itisnoteasytomakeupandtellaheroicstoryindailylife. C.Memoriesformedduringchildhoodareworthvaluingalllifelong. D.Youneedtogetyourhandsdirtytoexperiencesomethingprecious. 27.Whatcouldbethebesttitleforthepassage? A.AValuableLifeLesson B.ATidyandCleanChild C.AEweDeliveringherBaby D.ABeautifulNewbornLamb.
OneafternoonI'dbeendrivingdownthefreewaywhenIspottedwhatlookedlikeastalled熄火的car.I41thatothercarshadslowedinordertobrieflylookatthestalledcar.Idecidedto42behindthecarandfindoutwhatwasgoingon.Suddenlyan43womanstepsoutandsheappearstobeinpain.IapproachedthewomanaskingifIcan44.ShesaidPleasecallmyhusband.Iamtryingtogettothe45.Iamabouttogivebirth!46asIwasIsaidWehaveno47forthat.Quick!GetinmycarandIwill48you. Itriedtodrivebothquicklyandsteadily49mypassengerwouldnotmovearoundalot.Ialsotriedofferinga50talkonthewaylikeEverything'sgoingtobeok.andWe'realmostthere.51wemetnoobstacleallthewayandarrivedatthehospitalinnotime.Itseemedabit52toanswerthestaff'squestionsabouthersincewe'djustmetafewminutesbeforeandIknew53aboutheroutsideofhername. 15minuteslaterher54cameoutofbreath.Uponseeingmehethankedmeandhandedmea$100bill.AtthatmomentI'd55theSMILEcardinmyglovebox.Iwalkedoutand56withittotheroomwherethewomanhadbeensettled.ItoldherthatithappenedthatIhadsomething57happentomewhenmysecondchildwasbornandwehadagoodlaughoverthe58. OnthewayoutI'daskeda59togivethecoupleanenvelopewiththeSMILEcard.Its60includedthe$100billwithanotethatreadBaby'scollegefund.Whew!Whataday. 41.A.expected B.noticed C.admitted D.knew 42.A.pullup B.pullin C.speedup D.joinin 43.A.lazy B.single C.injured D.pregnant 44.A.help B.stop C.leave D.pass 45.A.office B.car C.hospital D.store 46.A.Excited B.Puzzled C.Shocked D.Disappointed 47.A.excuse B.time C.need D.money 48.A.treat B.call C.send D.take 49.A.incase B.sothat C.evenif D.asthough 50.A.positive B.direct C.ridiculous D.negative 51.A.Naturally B.Undoubtedly C.Eventually D.Fortunately 52.A.complex B.vital C.difficult D.easy 53.A.nothing B.everything C.something D.anything 54.A.friend B.husband C.mother D.child 55.A.bought B.made C.forgotten D.remembered 56.A.posted B.designed C.returned D.brought 57.A.controversial B.crazy C.strange D.similar 58.A.child B.disaster C.story D.news 59.A.assistant B.nurse C.waitress D.policeman 60.A.objects B.projects C.themes D.contents
Whileoverallratesofsuddeninfantdeathsyndromes综合征havedecreasedinrecentyearsdeathsfromsleepsuffocation窒息________overthesametimeperiod. A.double B.havebeendoubling C.havedoubled D.doubled
Asisjokedbysomepeople_______thereisasquarethereissquaredancing. A.because B.when C.since D.where
2.5分下列原子结构示意图中表示阳离子的是
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