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近年来我国科学家发现了一系列意义重大的铁系超导材料，其中一类为Fe﹣Sm﹣As﹣F﹣O组成的化合物．回答下列问题： （1）元素As与N同族．预测As的氢化物分子的立体结构为 ，其沸点比NH3的...
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高三下学期化学《》真题及答案
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材料近年来我国政府为了增加居民的收入扩大居民消费保障人民生活采取了一系列措施如加强三农工作增加农民收
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近年来科学家在海洋中发现了一种冰状物质――可燃冰其有效成分为甲烷下列说法正确的是①甲烷属于烃类②在相
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近年来人类对物质世界的探索不断取得新的进展2014年3月大亚湾中微子实验国际合作组织宣布发现了一种新
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近年来我国出台了诸如家电下乡汽车下乡摩托车下乡等一系列刺激农村消费的政策结合实际说明出台这些政策的背
一批伟大的科学家在电磁理论的建立过程中做出了卓越的贡献关于其中一些科学家和他们的贡献下列说法正确的是
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近年来由于天体物理学的发展天文学家发现了许多宇宙间的物质形态比如暗物质暗能量黑洞等这些发现表明
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180÷9﹣72÷9＝180﹣72÷9判断对错
可由长方形和正方形拼成．判断对错
×表示÷2表示．
Hollywoodmoviesareregularlyfilledwithsexandviolence.Theycanbeexcitingfilmsbutsometimesallyouwantisalittlelight﹣heartedentertainment. HaveyouheardofBollywood?AllsingingalldancingandunrealisticitistheperfectalternativetonormalHollywoodmovies.BollywoodistheIndianfilmindustrybasedinMumbaiformerlyknownasBombay.1YetBollywoodisthelargestproduceroffilmsintheworld.ThisyeartheIndianFilmgareAwardsBollywood'sOscarsturn50yearsold. ThetypicalBollywoodmovieusuallyhasthefollowingingredientsacupofromanceatea﹣spoonofcomedyadashofinternationalsight﹣seeingservedwithahugesliceofsinginganddancing.Therewillalsobeonebraveheroonebeautifulheroineandonebaddie.2 Bollywoodfilmsarefullofidealthingsandfreeofdailyworries.3Theactorschangeclothesandlocationswithinasinglesong.Buttheaudiencedon'tmind.ToIndianmovieloversespeciallythepoorsuchfilmsareagatewaytoheavenandthestarsaretheirgods.Thefilmstakethemtoamagicalworldawayfromtheireverydaytroubles.Thefilmstellthemtheimpossibleispossibleandthattrueloveconquersall.4BehindthebeautifulscenesBollywoodstillemphasizestraditionalfamilyvalues.Inmostfilmsiftwoloverswanttobreakanarrangedmarriagetheycan'tjustrunaway.Theymustwinovertheirparents. Bollywoodisadecentrefreshingreplacementforthoseover﹣stimulatingHollywoodfilms.5Theywilltakeyoutoabrightercheerierandmorecolorfulworldwhereit'sstillcooltodancearoundatreeandsingalovesong. A.Bollywoodhasgraduallywonitsreputationontheworldstage. B.Thereisneveranymentionofpoliticspovertyorwar. C.MostChineseschoolkidshaveprobablyneverseenanIndianfilm. D.Bollywoodfilmsaremostlycomicromanceswithlight﹣heartedincidentalmusic. E.Bollywoodpaysgreatattentiontotraditionalvalues. F.Theresultisafun﹣filledmusical. G.Soifyou'retiredofallthatHollywoodactionscheckoutthefollowingBollywoodfilms.
一根绳子剪成两段第一段长2米第二段占全长的那么
如图整个长方形面积是阴影部分面积的倍．
一个工厂由于采用了新工艺现在每件产品的成本是37.4元比原来降低了15%原来每件成本是多少元
Parentsarefuellingbadbehavioramongtheirchildrenbyattemptingtobuytheirlovewithexpensivegiftsnowadays. Overrecentdecadesweseemtohavecreatedamusthavecultureamongouryoungpeople.Manymothersandfathersbelievetheyarefailingasparentsiftheyareunabletoensurethattheirchildrenhavethelatesttoyelectronicdevicesthelap﹣topcellphonesGameBoyetc.alongwiththeirfriends.Inmanycasesfamiliesalsofeelpressuredtoenroll使加入childrenin'everyinterestcluborafter﹣schoolactivitythatisavailabletofilluptheirtimelikemostoftheotherchildren. Butexpertswarnedthatthemovemightaffectpreciousfamilytimenegatively.GrahamGortonchairmanoftheIndependentSchoolsAssociationsaidthatparentsspenttoomuchtimefillingtheirchildren'sliveswhichhadaseriesofnegativeeffectsontheverypreciousfamilytimethatexists. Itseemsthatthosetimeswhenawholeweekendwithoutplannedworkwasseenasaluxury奢侈andaperfectopportunitytospendtimetogetherandsharethosevaluablemomentsofchildhoodarelonggoneMr.Gortonsaid.AsachildIonlyoncesaidthatphrasethatparentsfeared'I'mbored'.ImmediatelymymothertookactionandproducedalistofjobsandtheninsistedthatIcompleteeveryoneofthem.Thoughldidn'tthinkcleaningallthefloorscouldreallygetridofmyboredomIenjoyedthefeelingofstayingathomewithmymotherandbrothers. Earlierthisyearsomeresearcherssuggestedthatrelativelywealthyparentsweresometimesguiltyoffailingtoteachbasicsocialskillstochildren.Oftenit'stherichmiddleclassesthatbuyofftheirchildrenthroughthecomputerandtheTV.Thatthensetsthemapartfromtheirfamilyandthentheparentsaresurprisedwhentheirchildisn'tcomingtoschool. 1Thesecondparagraphmainlytellsusthat. A.today'schildrenhavelittletimetoplay B.today'schildrendependonelectronictoolstoomuch C.today'sparentsfeelpressuredbythe'musthaveculture D.beingqualifiedparentsbecomesharderfortoday'syoungpeople 2Whatdoesthemusthavephenomenonrefertobasedonthepassage? A.Thatchildrenmusthavewhatotherchildrenhave. B.Thatchildrenmusthaveproperpressuretoworkhard. C.Thatchildrenmusthavespecialskillstoensureabetterfuture. D.Thatparentsmusthavepatiencetoknowtheirchildrenbetter. 3WhichofthefollowingisthebestadviceyoucouldgivetoparentsbasedonGorton'sstatement? A.Planfeweractivitiesfortheirchildrentoimprovefamilytime. B.Buytheirchildrenfewerthingsthattheyarefondof. C.Givetheirchildrenmorehouseworktodo. D.Leavetheirchildrenalonewhenthekidsfeelbored. 4Fromthepassagewecaninferthat. A.wealthyparentsdon'tliketeachingbasicsocialskillstochildren B.parentsshouldbemuchmorestrictwiththeirchildrenathome C.childrenshouldnotbebroughtupinawealthyandpleasantenvironment D.onlysatisfyingchildren'smaterialneedsisnotagoodwayofparenting
3＝20＝24÷＝%＝六折．
如果一个正方形和一个圆的周长相同圆的面积更大．判断对错
看图写算式并计算． ×＝．
815比的前项加上16要使比值不变比的后项应加30．．判断对错
Ifwewanttomakefriendslet'sputourselvesouttodothingsforotherpeople﹣﹣﹣thingsthatrequiretimeenergyunselfishnessandthoughtfulness. WhentheDukeofWindsorwasthePrinceofWaleshewas1totourSouthAmericaandbeforehe2onthattourhespentmonthsstudyingSpanishsothathecouldmakepublictalksinthelanguageofthecountryandtheSouthAmericans3himforit. ForyearsIconsidereditimportanttofindoutthe4ofmyfriends.How?AlthoughIdon'thavefaithinastrology占星术Ibeganbyaskingmyfriendswhetherheorshe5thedateofone'sbirthhasanythingtodowith6andpersonality.Ithenaskedhimorhertotellmethemonthanddayofbirth.7heorshesaidNovember24forexampleIkept8tomyselfNovember24November24.Theminutemyfriend'sbackwas9Iwrotedownthenameandbirthdayand10wouldtransfer转写ittoabirthdaybook.AtthebeginningofeachyearIhadthesebirthdaydatesscheduledinmycalendarpadsothattheycametomy11automatically.Whenthebirthday12therewasmyletterortelegram.Whatabig13itwas!Iwasfrequentlytheonlypersononearthwho14. Ifwewanttomakefriendslet's15peoplewithenthusiasm.WhensomebodycallsyouonthetelephonesayHellointonesthatsuggesthow16youaretohavethepersoncall.Manycompaniestraintheirtelephoneoperatorstogreetallcallersinatonethatshowsinterestand17.Thecallersfeelthecompanyis18aboutthem.Let'srememberthatwhenweanswerthetelephonetomorrow. Showingagenuine19inothersnotonlywinsfriendsforyoubutmay20initscustomersaloyaltytoyourcompany. 1A.planned B.forced C.permitted D.scheduled 2A.carriedout B.workedout C.setout D.turnedout 3A.envied B.criticized C.loved D.expected 4A.plans B.birthdays C.worries D.secrets 5A.noticed B.believed C.cared D.imagined 6A.character B.talent C.habits D.beliefs 7A.If B.Since C.While D.Unless 8A.counting B.proving C.explaining D.repeating 9A.hidden B.covered C.turned D.examined 10A.instead B.later C.again D.still 11A.attention B.control C.touch D.support 12A.arrived B.appeared C.lasted D.passed 13A.record B.challenge C.embarrassment D.surprise 14A.expected B.promised C.discovered D.remembered 15A.praise B.greet C.help D.encourage 16A.peaceful B.worried C.pleased D.nervous 17A.surprise B.enthusiasm C.shock D.imagination 18A.worried B.curious C.careful D.concerned 19A.faith B.pride C.interest D.understanding 20A.develop B.prepare C.involve D.share
男生20人女生30人男生人数占全班人数的%女生人数比男生人数多%
将数A分解质因数是A＝2×3×5那么因数有个．
在横线上填上“＞”“＜”或“＝”． 9平方米900平方厘米 30平方分米3平方米 7平方米700平方分米 700平方厘米8平方分米
IrememberthefirsttimethatIwasextremelyhappy.Iwasabout8yearsoldwhenforthefirsttimetherewasacomputerintheclassroom.Irememberthatmyteacherallowedeachstudenttotaketurnstoplayvariouseducationalgamesonthecomputer.OnedayIfoundthesourcecode编码foroneofthesegames.WithoutknowingorbeingtaughtanyprogramminglanguageIwasabletofigureoutsomeoftheBASICcode.IjustgavemyselfaninfinitenumberoflivesinthegamesoIcouldcontinueplayingitforever.Thiswasalsomyfirstintroductiontoalgebra代数学andIdidn'tevenknowitatthetime.Thiswasadecisivemomentinmylife.IwasquiteexcitedbecauseofwhatIwaslearningandwhatIwasabletodo.AsaresultIwasenthusiasticfortherestofmylifeaboutselflearningandcomputersandIwasquitehappydoingthemtoo. I'venoticedthatpeoplewhoaretrulycontentwithlifeareenthusiasticaboutwhattheydo.Thisenthusiasmalongwithgoodhealthisthekeytobeinghappy.Italsoleadstoself﹣confidenceandcontentinlifetoo.Itmayalsoleadtosuccesswealthandachievements. SuccesswealthorachievementscanalsobringsomepeoplehappinessyetIknowplentyofrichpeoplewhoareunhappy.Iknowmanypeoplewithsuccessfulbusinessesthatarenothappywithwhattheyaredoing.Iknowpeoplewhocontinuouslybuythemselvesnewtoyssuchascarscomputersandtelevisionsyetneverseemcontentfortoolong.Pleaserememberhappinessisthejourneyoflifenotthedestination. 1WhatcanweknowfromParagraph1? A.Theauthor'sexperienceinhischildhoodchangedhislife. B.TheBASICcodeofthecomputerisnotdifficult. C.Creativethinkingisnecessaryforeverychild. D.Theauthorhasagreattalentforalgebra. 2Theunderlinedwordinfinitemeans. A.small B.normal C.limitless D.big 3Theauthorwantstotellusthroughhisexperienceintheschoolthat. A.youngpeoplearefearless B.wherethere'sawillthere'saway C.childrenarethehopeofthefuture D.interestisthebestteacher 4Wecaninferfromthelastparagraphthat. A.wealthcan'tbringpeopleanyhappinessandcomfort B.beingenthusiasticaboutwhatyoudoismoreimportantthanwealth C.onewillfeelunhappyoncehehasgainedallthethingsthathewants D.peoplewhoarerichandsuccessfulincareergenerallyfeelunhappy
一块长方形地量得它的周长是56m长和宽的比是52．这块长方形地的面积是多少平方米
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一个除法算式的余数是5那么除数就小于5．×判断对错
一个长方形和一个圆的周长相等．已知长方形的长是9分米宽是6.7分米圆的面积是
通过圆心的线段是半径．判断对错
ItwasacityinHubeiProvince.OnInternationalChildren'sDaysomeorphansfromtheWuhanWelfareInstituteforChildren1taketothepark.Anelderlywesternerwaswiththem.Thechildrenwereeagertotellhimeverythingthatwasgoingon.Theyheldhimbythehandandneverhesitatedtocall2Grandpa.ThismanwasProfessorWilliamDorrityfromFloridaUSA.In20033ProfessorDorrityandhiswiferetiredtheycametoWuhanandstartedtoworkasvolunteersattheWelfareInstitute. TheDorrityshavebeenworkinghard4improvetheconditionsattheWelfareInstitutesincetheycame.Theyoftentakechildrenondaytrips5bringalongwiththemallkindsoffoodforthekidstoenjoy.Theyrecentlyboughtaudiphonesforfourorphans6hearingproblemswereseriousandsmalltaperecordersforthreeblindchildren.TheyalsoboughtawheelchairfortenyearoldTanJun7suffersfromabrainproblem.Withthe8arriveofspringtheDorritystookthechildrenfor9outing.WeloveChinaandwelovechildrenDorritysaid10wearehappytodothis.
一个正方体的表面积是36平方厘米把它横截成两个大小相同的长方体表面积增加多少平方厘米
求未知数x x﹣x＝4.9 0.8＝x48．
长方形的两条边互相垂直．
兴农种子公司用350粒种子做发芽实验其中有50粒种子没有发芽．兴农种子公司这批种子的发芽率是
用12.56分米长的铁丝围成下面图形面积最大．
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