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一年中有（ ）个大月．
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一年中印度有多少个大大小小的节日
400
500
600
2015年是平年全年天一年中有个大月．
一年中有连续的哪两个月是有31天
平年的一年有天平年的2月有天．一年中大月有大月有天．
苹果和梨的根系一年中有生长高峰.
下列说法正确的是
一条射线长50米
一年中有6个大月，6个小月
：
和4：3能组成比例
一年中有几个季节
春
夏
秋
冬
一年中有6个大月6个小月．判断对错
下列说法正确的是
一条射线长50米
一年中有6个大月，6个小月
：
和4：3能组成比例
圆的半径和面积成正比例
非洲独立年一年中有国家独立
12个
15个
17个
19个
苗木根系生长在一年中有次生长高峰
1
2
3
数
是指一年中有雷暴的天数
下列说法正确的是
一条射线长50米
一年中有6个大月，6个小月
2010年是平年
一年中有6个大月和6个小月．．判断对错
关于北纬20゜正午太阳高度变化的叙述正确的是
北半球冬至日正午太阳高度最大
北半球夏至日正午太阳高度最大
一年中有两次达最大值
一年中只有一次达最大值
一年中有17个国家获得独立被称为非洲独立年的是
1956年
1964年
1965年
1960年
一年中有个节气
4
12
24
一年中有7个大月5个小月．．判断对错
冷季型草坪草最适宜生长温度是℃在我国主要分布在等地区一年中有个生长高峰期
下列说法正确的是
一条射线长50米
一年中有6个大月，6个小月
：
和4：3能组成比例
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8分EvenasGoogleplanstotestitsfleet车队ofself﹣drivingcarsonpublicroadsthissummeritsbusinessmodelremainsabitofamystery.By2025asmanyas250000self﹣drivingvehiclescouldbesoldeachyeargloballyaccordingtoastudybyanindustryresearchfirm. VehiclesthatcantakeanyonefromAtoBatthepushofabuttoncouldtransformmobilityformillionsofpeoplesaidChrisUrmsondirectorofGoogle'sself﹣drivingcarproject.FornowGooglehasnoplanstosellanyofitsself﹣drivingcars.Theyarestrictlyforresearch.ButtheywillhitpublicroadsthissummernearGoogle'sheadquartersinMountainViewCalifornia.Previoustestinghastakenplaceonlyonclosedcourses. Thecarsarebuilttooperatewithoutasteeringwheelaccelerator油门orbrakepedal.OursoftwareandsensorsdoalltheworkUrmsonsaid.Thevehicleswillbeverybasic﹣wewanttolearnfromthemandadaptthemasquicklyaspossible﹣buttheywilltakeyouwhereyouwanttogoatthepushofabutton.Theprototypes雏形arethefirstofa100﹣carfleetthetechgiantisbuilding. InthelongrunUrmsonseesafutureofsaferroads﹣themajorityofautoaccidentsarecausedbyhumanerror﹣andfewertrafficjams.Roboticcarscouldalsoshuttlepeoplewhocan'tdrivebecauseofageorillness. Googlehassaidthatself﹣drivingcarscouldlaunchnewbusinessmodelsinwhichpeoplebuytheuseofvehiclestheydon'town.Thecompanyhasalreadytestedothertypesofself﹣drivingcarsonpublicstreetsincludingmodifiedLexussport﹣utilityvehiclesunderaspecialpermitprogrambytheCaliforniaDepartmentofMotorVehiclesthatrequiresahumandriveratthecontrols. ThestatehasissuedsixothercompaniespermitstooperatesuchcarsincludingDelphiMercedes﹣BenzVolkswagenTeslaBoschandNissan.Thevehiclesthatwillbetestedonopenroadsthissummerwillhaveremovablesteeringwheelsacceleratorandbrakepedalstoallowsafetydriverstotakecontrolifneeded. Googlesaysthecarsaresafe.ThevehicleshavesensorsthatcandetectobjectsouttoadistanceofmorethantwofootballfieldsinalldirectionswhichisespeciallyhelpfulonbusystreetswithlotsofintersectionsUrmsonsaid.We'relookingforwardtolearninghowthecommunityunderstandsandinteractswiththevehiclesandtouncoveringchallengesthatareuniquetoafullyself﹣drivingvehicleUrmsonsaid. 1Thepassageinformsusthatself﹣drivingcars. A.willprobablydecreasetrafficjams B.havealreadypassednecessarytests C.havebeenpurchasedbysomecompanies D.willbeabletocommunicatewithdrivers 2AccordingtoChrisUrmson. A.softwareandsensorsarevitalforself﹣drivingcars B.self﹣drivingcarscangivedrivingorderstohumans C.self﹣drivingcarsarespeciallydesignedfortheelderly D.ordinaryvehicleswillbereplacedbyself﹣drivingcars 3Theunderlinedwordintersectionsinthelastparagraphprobablymeans. A.accidents B.buildings C.crossings D.vehicles 4Whatisthebesttitleforthispassage? A.Self﹣drivingCarAvoidsHumanErrors B.Self﹣drivingCarMeetsNewChallenges C.Google'sSelf﹣drivingCarEnjoysGlobalPopularity D.Google'sSelf﹣drivingCarGraduatestoCityStreets
6克冰醋酸完全溶于水配成500毫升溶液用此醋酸溶液滴定20毫升某一未知浓度的氢氧化钠溶液共消耗这种醋酸溶液30毫升．求 1醋酸溶液的物质的量的浓度． 2未知氢氧化钠溶液的物质的量的浓度．
比例尺101表示图上长度是实际长度的10倍．
1固体A有如图的转化关系 根据题意完成下列反应方程式 ①A→B ②D→E ③实验室制B气体时为减缓反应速率可用代替水且填能或不能用启普发生器． 2如图所示已知A和E为金属单质B是化合物且常温下为液态F为两性化合物．按要求回答下列问题 ①E在元素周期表中位于第周期第族 ②写出A和B反应的化学方程式． ③C和E反应的化学反应方程式为．
Veryoftenwewillhavetospeaktoalargeaudience.Forexamplewemayneedtogiveatalkinwhichcasemostofuswillbeshyandembarrassed.Thereisno1forthis.Ifafewsimplerulesare2anyonecanspeakwellin3.Firstofallthetalkshouldbewell4.Inthiswaywe5agoodcommandofwhatwearegoingtosayand6upourconfidence.Byworkinghardwecangetsomenecessaryfactsorinformation7asaresultwefeelmuch8.Thereare9thingsweshouldknowwhenwearepreparingour10.Thefirstoneiswhatwearetryingtodoandwhatwewanttotellour11.Thesecondthingiswhoouraudiencewillbe.Ifwearetalkingto12ourtalkshouldbesimple.Ifwearespeakingtoadultsorolderpeoplewecanmakeit13ifnecessary.Thethirdthingweshouldknowisforhow14weshouldtalkand15weshouldmakesurethatwe16tothattime.Ithasbeen17thatthemain18ofanytalkisthatyour19shouldbringyouandtheaudiencetogether.Ifyoukeepthatinmindandspeakclearlyandhonestlyinan20manneryourspeechwillsurlybeasuccessfulone.1A.time B.room C.way D.need2A.studied B.decided C.followed D.permitted3A.home B.public C.silence D.order4A.prepared B.made C.listened D.spoken5A.reduce B.gain C.increase D.win6A.clear B.look C.build D.keep7A.wrong B.ready C.false D.useful8A.greater B.smarter C.cooler D.better9A.three B.four C.two D.many10A.talk B.plan C.class D.program11A.students B.teachers C.children D.audience12A.girls B.boys C.children D.babies13A.original B.complex C.exciting D.strong14A.long B.soon C.often D.far15A.so B.but C.then D.yet16A.lead B.take C.get D.stick17A.said B.expected C.explained D.caused18A.mistake B.purpose C.choice D.phrase19A.idiom B.impression C.idea D.imagination20A.confusing B.ordinary C.rude D.impressive
下列塑料制品①聚四氟乙烯②聚氯乙烯③聚乙烯其中性质不稳定时间久了会分解产生有毒物质不能用于直接包装食品的是
10分 HowtoTurnYourGoalsintoHabits Firstwemakeourhabitsthenourhabitsmakeus.It'ssuchasimpleconceptyetit'ssomethingwedon'talwaysdo. IbelievethathavingONEgoaltofocusonismuchmorepowerfulthanhavingmanygoals.ByputtingthebeliefintopracticeIhaveachievedalotofpersonalgoalsovertime.1Myanswertakesalittleexplaining.ItrytoturnmygoalsintohabitsandindoingsoIputmygoalsonautopilot.Turningagoalintoahabitmeansreallyfocusingonitforatleastamonth.Themoreyoucanfocusthemoreit'llbeonautopilot.2You'llstilldoitbutyouonlyhavetouseminimalforcetomaintainitandyoucanfocusonyournextgoalorhabit. Takemymarathongoalasanexample.Iwasjuststartingrunningandhadthebrilliantideatorunamarathonwithinayear.Sothatwasmygoal.3FirstIhadtomakerunningadailyhabit.SecondIhadtoreporttopeopleinordertohaveaccountability负责sothatIcouldnotquiteasily.Ifocusedonthedailyrunninghabitforaboutamonthanddidn'thaveanyothergoalsorhabits.WhentherunninghabitstuckIstartedreportingtopeopleIknewandbloggingaboutmyrunningeveryday. 4Icouldfocusonnewgoalswithouthavingtoworryaboutthemarathon.Istillhadtodotherunningofcoursebutitdidn'trequireconstantfocus.5IwasabletoachievethisbecauseallyearlongIhaddailyrunningandaccountabilityhabits.IputmymarathongoalintoautopilotsoinsteadofstrugglingwithitdailyforanentireyearIfocusedonitforonemonthandwasabletoaccomplishitwhilefocusingonnewhabitsandgoals. A.AndeventuallyIranthefirstmarathoninmylife. B.Atthebeginningitwasverydifficultformetoachievethisgoal. C.ButinordertoachieveitIbrokeitdownintotwohabits. D.Withthisaccountabilitythere'snowayIcouldstoprunning. E.Onceyouputitonautopilotyoudon'thavetofocusonitmuch. F.MyreadersaskedmehowIwasabletoachievethemwhileworkingondifferentprojects. G.Oncethosetwohabitswereestablishedmymarathongoalwasprettymuchonautopilot.
Roadpolitenessisnotonlygoodmannersbutgoodsensetoo.Ittakesthemostcool﹣headedandgood﹣tempereddriverstoresistthetemptationtotakerevenge报复onuncivilizedbehavior.Ontheotherhandalittlepolitenessgoesalongwaytowardsreducingthetensionsofdriving.Afriendlynodorawaveofappreciationinresponsetoanactofpolitenesshelpstocreateanatmosphereofgoodwillandtolerancesonecessaryinmoderntrafficconditions.Butsuchappreciationofpolitenessistooraretoday.Manydriversnowadaysdon'tevenseemabletorecognizepolitenesswhentheyseeit.Howevermisplacedpolitenesscanbedangerous.Typicalexamplearethedriverswhobrakesviolentlytoallowacartocameoutofasidestreetatsomedangertofollowingtrafficorthemanwhowaveachildacrossazebracrossingintothepathofoncomingvehiclesthatmaybeunabletostopintime.Thesamegoesforencouragingoldladiestocrosstheroadwhereverandwhenevertheyliketo.Anexperienceddriverwhosemannersarefaultlesstoldmeitwouldhelpifmotoristslearnttomovecorrectlyintotrafficstreamsoneatatimewithoutcausingthetotalblockagesthatgiverisetobadtemper.Unfortunatelymodernmotoristscan'tevenlearntodriveletalonemasterthelessobviouspointsofdrivingperfectly.Yearsagotheexpertswarnedusthatanexplosionincar﹣ownershipwoulddemandalotmoregiveandtakefromallroadusers.It'shightimeforallofustotakethismessagetoheart.1Accordingtothepassagetheroleofpolitenesscan.A.helpuslearnabouttrafficrulesB.reducethepleasureofdrivingC.makeourlifehappierthanothers'D.resistthetemptationtotakerevengeonuncivilizedbehavior2By'goodsense'inthefirstparagraphthewritermeans.A.thedriver'sabilitytounderstandpolitenessandreactreasonablyB.thedriver'simmediateresponsetoterribleroadconditionsC.thedriver'sskillofcontrollinghisorhercarinextremesituationsD.thedriver'sabilityofdrivingsafelyintrafficjams3WhichofthefollowingisNOTmisplacedpoliteness?A.Thedriverletsoldladiescrosstheroadwhentheywantto.B.Thedriverresponsestoanactofpolitenessinafriendlyway.C.Thedriversuddenlystopstopermitacartocomefromasidestreet.D.Thedriverwavesachildacrossazebracrossingintothepathofdangerousoncomingvehicles.4Inthewriter'sopinion.A.stricttrafficregulationsarebadlyneededB.driversshouldapplyroadpolitenessproperlyC.rudedriversshouldbepunishedD.driversshouldavoidtrafficjams
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15分Bulewhalesarenotfish!Theyaremarinemammals.Thismeanstheyarewarm﹣bloodedandthefemalesproducedmilk1feedtheirbabies. Havingthehonorofbeingtheworld'slargestanimaladultbluewhalescangrowto30meterslongwiththefemaleusuallyalittle2longthanthemale3weighabout170tons.Theseseacreatureshavesomehugebody4part.Theirheartsforexampleareabout1.5metreslong1.2metreswideand1.5metrestall.Theirtonguesweighabout2.7tons﹣﹣﹣﹣﹣theweightofasmallelephant.Not5surprisingbluewhaleshavelargeappetites.6isusualforabluewhalestoeatfishinlargequantities﹣﹣﹣around40millioninaday. Inthepastbluewhaleswerehunted7theirmeatandtheiroil.WhalingwasaprimaryindustryinAustraliainthenineteenthandearly8twentycenturiesbutwhalinginAustralia9limitin1987.Todaymostcountriesstronglydisapproveofwhalingincludingtheverycountry﹣﹣﹣Australia10nowsupportsananti﹣whalingpolicy.
某实验小组设计了如图装置对焦炭还原二氧化硅的产物的成分进行探究． 已知PdCl2溶液可用于检验CO反应的化学方程式为CO+PdCl2+H2O═CO2+2HCl+Pd↓ 产生黑色金属钯粉末使溶液变浑浊． 1实验的主要步骤如下 ①点燃酒精喷灯②通入N2一段时间③检查装置的气密性④向A的硬质玻璃管中装入焦炭过量与二氧化硅混合物共mg 则正确的操作顺序是． 2实验时要通入足够长时间的N2其原因是． 3B装置的作用是． 4装置CD中所盛试剂为．均填序号 A．NaOH溶液PdCl2溶液 B．CaOH2溶液PdCl2溶液 C．PdCl2溶液CaOH2溶液 D．浓H2SO4溶液CaOH2溶液 5若装置C中溶液无明显现象而D中溶液变浑浊则A中反应的化学方程式为． 6有mg混合物置于A中充分反应后用足量的氢氧化钠将固体进行溶解收集到6.72L氢气已换算成标准状况则制备出硅的质量为g．
c＝12.56分米圆的面积是
25分假定你是李华你校英国交换生Max想了解中国文化及孔子.请给他写封邮件邀请他参加关于孔子与中国文化的讲座内容包括 1.时间地点主题 2.你对该活动的看法. 参考词汇孔子Confucius儒家学说Confucianism
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和4：3能组成比例 圆的半径和面积成正比例
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