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2017年，中国发射的世界首颗量子科学实验卫星“墨子号”圆满完成了4个月在轨测试任务，我国科学家成功实现了洲际量子保密通信．“墨子号”卫星实现星地量子通信是通过 传递信息的．卫星的太阳能电池板是...
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2018年·兰州市西固区兰化一中二模被誉为中国版海事卫星的天通一号01星在2016年8月6日在西昌卫
火箭发射加速升空时，卫星对火箭的压力小于自身重力
“墨子”号卫星的向心加速度约为“天通一号01星”的向心加速度的37.8倍
在相等时间内，“墨子”号卫星通过的弧长约为“天通一号01星”通过弧长的8.5倍
“天通一号0l星”．的运行周期大于“墨子”号卫星的运行周期
2016年8月16日我国在酒泉卫星发射中心用长征二号丁运载火箭成功将世界首颗科学实验卫星墨子号发射升
量子
质子
中子
光子
今年1月我国发射的世界首颗量子科学实验卫星完成了在轨测试任务．实验卫星与地面通信联系是利用
次声波
无线电波
红外线
超声波
2016年8月16日世界首颗量子科学实验卫星墨子号在酒泉发射成功标志着我国空间科学研究又迈出重要一步
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2016年8月16日我国发射了世界首颗量子科学实验卫星这将使我国在世界上首次实现卫星和地面之间的量子
“孔子号”
“墨子号”
“孟子号”
“荀子号”
世界首个量子卫星中科院量子科学实验卫星简称量子卫星于发射
2016年7月
2015年10月
2015年11月
2016年5月
2016年8月16日我国在酒泉卫星发射中心用长征二号丁运载火箭成功将世界首颗量子科学实验卫星发射升空
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2016年8月16日1时40分我国在酒泉卫星发射中心用长征二号丁运载火箭成功将世界首颗量子科学实验
2017年1月18日由安徽中国科大主导研发的世界首颗量子科学实 验卫星墨子号发射成功
2017年1月18日我国发射的世界首颗量子科学实验卫星墨子号圆满完成了4个月的在轨测试任务正式交付用
“墨子号”的环绕周期为
“墨子号”的轨道半径为
地球的质量为
地球的密度为
2016年8月16日1时40分中国成功将世界首颗量子科学实验卫星墨子号发射升空墨子号量子卫星的成功发
国际竞争的实质是以经济科技实力为基础的综合国力的较量
国家间在经济科技领域中的竞争、合作是国际关系的基本形式
世界经济的发展更加注重提高质量，经济可持续发展日益受到关注
世界巳形成了多个政治经济力量中心，世界多极化进程趋向完成
世界上真有绝对安全的通信吗有那就是量子通信2016年8月16日我国在酒泉卫星发射中心用长征二号丁运
2016年8月16日我国在酒泉卫星发射中心用长征二号丁运载火箭成功将世界首颗量子科学实验卫星墨子号发
角速度大于地球自转的角速度
加速度大于地球表面的重力加速度
加速度大于同步卫星的向心加速度
速度大于第一宇宙速度
是我国成功发射世界首颗量子科学实验卫星
嫦娥号
神舟号
玉兔号
墨子号
2017年9月29日世界上首条量子保密通信干线京沪干线和墨子号科学实验卫星进行了天地连接成功实现了洲
在“墨子号”实验卫星的发射过程中，将重力势能转化为动能
在轨运行的“墨子号”卫星受到的力是平衡力
在轨运行的“墨子号”卫星内部的物体处于失重状态，但仍然受重力
保密通信“京沪干线”和卫星“墨子号”之间是通过超声波实现联系的
2016年8月17日世界首颗量子科学实验卫星在酒泉成功升空量子科学实验卫星取名墨子以墨子为代表的墨家
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2016年8月16日凌晨我国成功发射了世界首颗量子科学实验卫星该卫星以我国古代 一位先贤命名以纪念
孔子
老子
墨子
荀子
2017年1月18日我国发射的世界首颗量子卫星墨子号正式交付用户单位使用墨子号与地面控制系统交流靠的
次声波
X射线
红外线
电磁波
2016年8月16日我国发射了世界首颗量子科学实验卫星这将使我国在世界上首次实现卫星和地面之间的量子
“孔子号”
“墨子号”
“孟子号”
“荀子号”
2016年8月16日我国发射了世界首颗量子科学实验卫星这将使我国在世界上首次实现卫星和地面之间的量子
“孔子号”
“墨子号”
“孟子号”
“荀子号”
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下列物质中只含有分子的是
将一定量的丙烷C3H8和氧气置于一个密闭的容器中引燃并充分反应测得反应前后各物质的质量如表所示下列判断不正确的是
Mostpeoplewillagreethatitisgoodtoreadbutnotallreadingisequal.Herearesometipsforproductivereading. 1.Takenotes. Evenifyouneverrefertoyournotesagaintheprocessoftakingnoteshelpsyousortoutsomethingimportantandwillhelpyourememberit.Youcanchoosebetweencomputersorpaperforyournotes.1.Ontheotherhandmanypeoplefeeltheyrecallinformationbetterwhentheywriteitbyhand. 2.2. Ifyouarelikemeonceyoucommittoreadingabookitisveryhardtogiveupuntilyou'vefinishedit.Giventhenumberofbooksthatareavailableandourlimitedlifeitjustdoesn'tmakesensetoreadabookthatyouaren'tgettinganythingfrom. 3.Varietyisgood. Whileyoudon'twanttogiveuponabookthatyouarebenefitingfromitisimportanttogiveyourselfvariety.Youcanpickupabookatrandomorintentionallylookingforsomethingdifferentfromwhatyounormallyread.3. 4.Reviewwhatyou'veread. Ifyouwanttorememberwhatyoureadtakethetimetoreview.4.Whenyoufinishabookspend15minutesexaminingyournotesin2to4days.Then2to4weeksafterthatandthen2to4monthsafterthat.Thiswillstrengthentheknowledgeinyourmind. 5.Discusswhatyoureadwithothers. 5.Ifyoucantalkwithpeopleinpersonthatisidealbutdon'toverlookthepoweroftheInternetinconnectingpeoplewithsimilarinterestsbutdifferentgeography. A.Don'tbeafraidtogiveup B.Makefulluseofreadingtime C.It'shardtogetmoreoutofyournormalreading D.Thiscanbeveryvaluableingivingyouadifferentopinion E.Andyoudbettergooverthingsateverincreasingtimeintervals F.Usingcomputerswillmakeiteasytofindyournoteslaterbysearch G.Thebestwaytogetmorefromyourreadingistodiscussitwithothers
用所学化学知识解释下列原理 1铵态氮肥为什么不能与碱性物质混合使用 250mL酒精与50mL水混合后从分子角度解释为什么总体积小于100mL
Sudanistheonlymalenorthernwhiterhino犀牛1eftintheworld.That1meanSudan42isthelasthopeforavoidingextinction.2protecthimofficialshaveplacedhimunder24﹣hourarmedguardattheO1PejetaConservancyincentralKenya.Sudanlivesthere3twofemalenorthernwhiterhinosFatuandNajin. Northernwhiterhinos4canweighupto5000poundswereonceplentifulacrossnorthernandcentralAfrica.5hunterhavekilledthousandsofrhinosbecauseof6highdemandfortheanimalshorns角.Rhinohornsbelievedtohavemedicaleffectsareusedin7traditionAsianmedicines.Morethan1000rhinos8killin2014inSouthAfricaaloneandfifty﹣fourrhinosinKenyawhichhasamuch9smallpopulation. SudanFatuandNajinhavehadtheirhorns10removesothattheywillnotbehunted.PeoplehopeSudanandoneofthefemaleswillbeabletohaveababy.Sudanisveryoldbutscientistswillnotgiveuphope.
Manysmall﹣businessownerswatchedrecentrevelationsaboutFacebookwithmixedemotions.LikemostAmericanstheyweresurprisedtodiscoverhowmuchinformationthesocialmediagiantcollectedonitsusers.ButwhenitcomestosmallbusinessFacebookisatransformativeadvertisingplatformforsmallbusinessesnoteasytoreplace. Let'ssayyouownasmallseafoodrestaurantandTuesdaynightsare﹩1oyster牡蛎nights.Traditionaladvertisingmethodscostalotandmustbeplannedlonginadvanceandit'shit﹣or﹣missastowhetheryouactuallygetinfrontofoystereaters.WithFacebookonTuesdaymorningwithafewclicksyoucantargetFacebookusersinyourZipcodewholoveoystersandeatingoutandareoverage21sotheycanbuydrinkswhichiswhyyouhave﹩1oysternights.Andyoucandothisforaslittleas﹩20. Inmyworkwithsmallbusinessesformorethan25yearsI'veneverseenamoreeffectivemethodofmicro﹣targetingprospects.ThoughFacebookisaneffectivetoolforsmall﹣businessadvertisingdoesnotjustify证明合理thecompany'scollectingvastamountsofdataorallowingusers'datatobeinvaded. Ourprimaryconcernwaspeople'sexperienceonFacebooksaidDanLevyFacebook'sVicePresidentSmallBusiness.Ourteamshavealsobeenspeakingtosmallbusinessesandtheywanttomakesurewe'readdressingthesituationandweare. OneconcernsmallbusinesseswantFacebooktoaddressisprotectingtheiruploadedlists.Noonewantstheircustomers'informationmisusedoraccessedbyothersespeciallycompetitors. Small﹣businessownersarerightfullyconcernedaboutprivacy.Theydon'twantFacebooktoknoweverythingaboutthemandtheydon'twanttheircustomerlisttobeletouttoothers. Butsmallbusinessesdon'twanttolosethiseffectiveadvertisingmediumeither.MostFacebookadsarenotinvasiveoroffensive.Andmanyreceiversmayactuallybenefitfromreceivinghighlytargetedads﹣afterallthoseoysterloverslikelearningaboutTuesdaynight﹩1oysternight. 1HowdoestheauthorexplainFacebook'sfunctioninparagraph2? A.Byperforminganexperiment. B.Bygivinganexample. C.Byanalyzingthedata. D.Byleadingasurvey. 2Whatistheauthor'sattitudetowardsFacebookmentionedinparagraph3? A.Supportive. B.Objective. C.Doubtful. D.Respectful. 3WhatmakessmallbusinessesconcernedaboutFacebookaccordingtothetext? A.WhatpeopleexperienceonFacebook. B.ThatFacebookupdatesthelistsconstantly. C.ThatFacebookwillletouttheircustomers'privacy. D.ThattheircompetitorsbenefitmorefromFacebook. 4Whatcanbethebesttitleofthetext? A.Facebookisbenefitingsmallbusiness B.Facebookapowerfuladvertisementtool C.Facebookisprotectingcustomers'privacy D.Facebookamixedbagforsmallbusiness
某同学用溶质质量分数为6%的氯化钠溶液密度约为1.04g/cm3配制50g溶质质量分数为3%的氯化钠溶液． 1配制该溶液需要6%的氯化钠溶液准确到0.1mL． 2若量取氯化钠溶液时仰视读数则会导致所配制溶液的质量分数填“＞““＜”或“＝”3%．
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现欲从含有CuSO4的废液中收铜同时得到工业原料硫酸亚铁晶体设计方案如图 1滤液A的成分是C物质是． 2从提高硫酸亚铁晶体回收率的角度分析该方案的一个不足之处是．
TheTajMahalinAgraIndiaisoneofthemostbrilliantstructuresonEarth.Itisnearly400yearsold.EmperorShahJahanhaditbuiltinmemoryofhiswife.Ittookabout20yearstobuildthemonument.Some20000workersand1000elephantshelpedgetthejobdone.TodaytheTajMahalisnotjustasymbolofculturalhistory.It'salsoIndia'smostfamoustouristattraction.About8millionpeoplevisititeachyear. Butpollutionisturningthewhitemarblemonumentshadesofgreenyellowandbrown.TheTajMahalstandsonthepollutedYamunaRiver.Insectsareattractedtothedirtywater.Theyleavegreenishdroppingsonthebuilding.Airpollutionisalsoabigthreat.Factoriesandcarsreleasepollutionintotheair.ItstickstotheTajMahal'ssuidEace.Inthe1990sIndia'sSupremeCourtorderedhundredsoffactoriesnearthemonumenttoclose.Alsocarandbustrafficwasrestricted.FromtimetotimeworkerscleantheTajMahal.Butdoingsoisdifficultexpensiveandtime﹣consumingAnditdoesn'tpreventthediscoloration. OnJuly11India'sSupremeCourtgavethecityofAgraawarningEitheryoudestroytheTajMahaloryourestoreit.AuthoritiesinthecitysubmittedadraftofanactionplanonJuly24.Itsuggestsbanningplasticsandconstructionfromthearea.Italsocallsfortheclosingofmorefactories. InordertopreservetheTajMahalpeoplemustcometogethertoworktowardasolution.Thereneedstobepositivepressureonpeopletoact.WeneedtoactimmediatelySachchidaTripathisays.Heworkedona2014studyofpollutionattheTajMahal.Wearetryingheaddsbutweneedtotrymore. 1WhydidEmperorShahJahanbidMtheTajMahal? A.Toattracttourists. B.Tohonourhiswife. C.TorepresentIndia. D.Tomarkhisgreatness. 2WhatcanweinferabouttheTajMahalfromthesecondparagraph? A.Itisgettingdirty. B.Itisunderrepair. C.Itattractsinsects. D.Itislosingtourists. 3WhatshouldpeopledotosavetheTajMahalaccordingtoSachchidaTripathi? A.Closefactories. B.Becomeunited. C.Makeanewplan. D.Preventthediscoloration. 4Whatcanbeasuitabletitleforthetext? A.ImmediateActionMustBeTaken B.TheTajMahalMustBeRebuilt C.FactoriesandCarsLedtoPollution D.PollutionDestroyedtheTajMahal
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分析处理图表信息是学习的一种重要方法如表是氯化钠和硝酸钾在不同温度下的溶解度． 这两种固体物质在水中的溶解度曲线如图所示 请仔细阅读图表后回到下列问题 1A曲线表示的是的溶解度曲线．填“NaCl”或“KNO3” 2P点的含义是． 3t2℃时将等质量的A和B的饱和溶液降温至t1℃所得溶液的质量分数关系是AB．填“＜”“＞”或“＝”
Whateverholidayyoucelebrateonethingisforsure﹣you'llfindeventsforchildrenonLongIslandthroughoutthemonthofDecember.FromholidayperformancestocraftslightshowsSantabreakfastsandmoreherearesomeofourfavorites. TheMagicalPolarExpress Familiestravelviatrolley有轨电车toTheNorthPoleatop﹣secretspotwherefamiliescangrabhotcocoaandcookiesthenmeetSantaelvesandothercharactersforabout30minutesbeforereturningtopointsofdeparture.Trolleyridesfeaturemusicandstorytelling.Pajama﹣wearingisencouragedphoto﹣takingisfree.TrolleydepartsfromAll﹣StarBowlinginRiverheadandTheOmniHamptonJitneyTerminalinSouthampton7p.m.﹣930p.m.FridaysSaturdaysSundaysrunningthroughDec.23additionaltimesmaybeavailablearrive30minutesinadvance ACharlieBrownChristmas CharlieBrownandhisfriendslearnwhatthetruemeaningofChristmasisinthistouchingplay.StayafterforphotoswithSantaandMrs.Clausandtomakeaholidaycraft. WHEN|WHERE3p.m.Dec.2123p.m.Dec.27attheNYCBTheatreatWestbury960BrushHollowRoadWestbury LongIslandFestivalofTrees The28thannualLongIslandFestivalofTreestakesplaceatCradleofAviationMuseumCharlesLindberghBlvd.GardenCity.Itfeaturesdisplayofdesignersdecoratedtreesgingerbreadcreationscookiedecoratingcostumedcharactersandvendorsfrom10a.m.﹣6p.m.Nov.24﹣25and10a.m.﹣5p.m.Nov.26. ImaginationMoversReindeerParty TheEmmyAward﹣winningrockbandforfamiliesisthrowingaReindeerPartyforLongIsland.Comeandlistentotheirpositivehitsongswithatouchofholidaycheerandsongsinthemix.Price﹩15﹩10forchildrenages2to12freeages1andyoungerticketsavailableinadvanceatcradleofaviationorg. 1Atwhicheventwillthevisitorsenjoyaplay? A.ACharlieBrownChristmas. B.TheMagicalPolarExpress. C.LongIslandFestivalofTrees. D.ImaginationMoversReindeerParty. 2WhatcanthevisitorsdoattheMagicalPolarExpress? A.Goontrolleyrides. B.Enjoytheliveconcert. C.Learnphotographforfree. D.Experiencetraditionalcrafts. 3Howmuchwillamotherwithtwo4﹣year﹣oldtwinspaytoattendaReindeerParty? A.﹩50. B.﹩54. C.﹩34. D.﹩35.
假定你是李华你校国际部在招聘一名兼职人员.你有意应聘请按要求用英语写一封应聘信. 要点1.有英语优势 2.协助外教的工作经历. 注意1.词数100左右 2.可以适当增加细节以使行文连贯.
假定你是李华.你市博物院将举行中国传统民俗文化展请给你校交换生Peter写一封电子邮件.要点如下 1.展览时间 2.展览内容 3.邀请参加. 注意 1.词数100左右 2.可以适当增加细节以使行文连贯.
碳和碳的化合物是初中学习的重要内容． 1金刚石石墨和C60都是碳元素的单质下列说法正确的是填字母代号． A．它们都是同种物质B．它们的原子排列方式不同 C．它们都能导电D．常温下它们都能与氧气反应 2实验室制取二氧化碳的原理是用化学方程式表示．若要得到干燥纯净的二氧化碳则 发生装置产生的二氧化碳按气流方向连接顺序为填导管接口字母CO2→→→→→． 3实验结束后装置B锥形瓶中废液中溶质的成分是什么 【猜想与假设】猜想一CaCl2猜想二CaCl2HCl 猜想三CaCl2HClCaCO3该同学认为猜想三是错误的理由是． 【实验验证】同学们对猜想与假设进行验证【结论】分析图象数据得出废液中含有的阳离子有．OA段发生的反应为用化学方程式表示AB段溶液的pH变大不变或变小． 4现取含碳酸钙80%的石灰石12.5g和94.4g稀盐酸恰好完全反应石灰石中的杂质不溶于水也不与稀盐酸反应求恰好完全反应后所得溶液中溶质的质量分数．
在“宏观﹣﹣微观﹣﹣符号”之间建立联系是化学学科特有的思维方式．如图是某反应的微观示意图下列说法正确的是
向一定质量的AgNO3和FeNO32的混合溶液中加入mgZn粉充分反应后过滤将滤液洗涤干燥后称量得到的固体质量仍为mg．下列说法正确的是
整理一批数据由一人做80小时现在计划先由一些人做2小时再增加5人做8小时完成这项工作的先做2小时的有多少人
Coffeeshopsarecool.HoweverinWilmingtonNorthCarolinaBitty&Beau'sCoffeeisknownforits1. Attheheartoftheshop'spopularityisits2staffalmosteveryonewhoworkstherehasan3ordevelopmentaldisabilityrangingfromDownsyndrome唐氏综合征toautism自闭症tocerebralpalsy脑瘫.Formanyemployeesit'stheirfirstjobandtheir4fillstheair. It'sthevisionofWilmingtoncitizenAmyWright5bytwoofherfourchildren﹣BeauandBittywhohaveDownsyndrome. WhenWrightandherhusbanddiscoveredthatnearly70%ofadultswiththosedisabilitiesdonothave6theyweredeterminedtodosomethingaboutit. It7melikeaflashoflightningacoffeeshop!Wrightsaid.Irealizeditwouldbethe8environmentforbringingpeopletogether.Seeingthestafftakingorders9coffee﹣they'drealizehow10theyare. TheshopopenedinJanuary2016and11hadlinesoutthedoor.Nationalpressattention12andsixmonthslaterithadtomovetoa13space. TodaytheWilmingtonstore1440peoplewithdisabilitiesaswellastwomanagerswhohavedegreesinspecial15.Theteamworkslikeawell﹣oiled16. Ourwaitingtimeisnolongerthananyofour17Wrightsaid.They'veallgottenreallygoodattheirjobsandstep18ifsomebodyelseneedshelp. Allthe19fromthecoffeeshopgotoWright'snonprofitAbletoWorkUSA.Butshe'smost20ofthebridgesit'sbuiltinthecommunity. 1A.taste B.price C.warmth D.management 2A.nursing B.qualified C.senior D.unique 3A.intellectual B.visual C.physical D.emotional 4A.fear B.surprise C.joy D.love 5A.admired B.inspired C.cheered D.persuaded 6A.friends B.cures C.jobs D.chances 7A.struck B.awoke C.scared D.convinced 8A.familiar B.perfect C.clean D.commercial 9A.pouring B.consuming C.acquiring D.serving 10A.hardworking B.gifted C.admirable D.capable 11A.immediately B.unusually C.apparently D.fortunately 12A.shifted B.followed C.continued D.counted 13A.nearer B.larger C.cooler D.greener 14A.assists B.attracts C.represents D.employs 15A.profession B.administration C.education D.condition 16A.machine B.tool C.device D.computer 17A.agents B.neighbors C.customers D.competitors 18A.in B.up C.aside D.down 19A.profits B.facilities C.donations D.employees 20A.typical B.certain C.proud D.worthy
VancouverTours VancouverStanleyParkTour IfyouwanttoseethemajorsightsinVancouverandcomehomewithamazingphotographsthis3﹣hourphotographytouristhewaytogo.WalkthroughVancouver'stopsightseeinglocationsgetguidanceonphotographybasicsandfindthebestspotstophotographthecity.FromStanleyPark'stotempolesandold﹣growthtreestothemostpopularbeachesanddiningspotsyouleavewithbeautifulmementosofthecity. HistoricalChinatownWalkingTour ExplorethecolorfulpastofCanada'soldestChinatowninVictoriaBritishColumbia.ThisguidedwalkingtourwillleadyouthroughthestreetsandstoriedalliesofthehistoricneighborhoodasyourguidetellsyoutheinterestingsometimessadtalesofthepeoplewhohelpedbuildthecityandshapeCanadaaswellasmodemChina. SmallGroupSeatoSkyTour TheSeatoSkyHighwayisoneoftheworld'smostbeautifulandcelebratedroadways.Youdon'thavetotakeyoureyesoffthesceneryonthissmallgrouptourbecausesomeoneelseisdoingthedriving.TourstopsincludeashorthiketoimpressiveShannonFallsthegorgeousSeatoSkygondolaandaward﹣winningBritanniaMineMuseum. EagleViewingRiverFloatTour Dresswarmlyunderablanketwithacupofhotchocolateforawinterfloatontheriver.Theareaisthewinterhabitatofbaldeaglesandthistripgivesyoutheopportunitytolearnaboutthebirdsasyoufloatthroughtheirarea.AftertheboatridereturntodrylandjustintimeforafreeheartymealbeforeheadingbacktoVancouver. 1Inwhichtourwillyougetinstructioninphoto﹣taking? A.SmallGroupSeatoSkyTour. B.VancouverStanleyParkTour. C.EagleViewingRiverFloatTour. D.HistoricalChinatownWalkingTour. 2WhatwillyoudoontheChinatownWalkingTour? A.BuildmodernChina. B.Tellinterestingstories. C.Learnaboutitshistory. D.Enjoyboatsightseeing. 3WhichofthefollowingdoestheEagleViewingRiverFloatTourprovide? A.Afreeeaglehunt. B.Afreeandheartymeal. C.Ahikeinthewoods. D.Acupofblackcoffee.
空气中体积分数最大的气体化合物是地壳中含量最多的金属元素与氯元素所形成化合物的化学式为．
AnumberofAmericanspredictthatdriverlesscarswillrevolutionizetheformoftravellingincitiesandhighways.HoweverexperimentshaveshownthatautonomousvehiclesalsohavethepotentialtoimprovethequalityoflifeformillionsofAmericansespeciallytheelderlyanddisabledsolongasthegovernmentandlawmakerscarryoutsmartpoliciesthatpavethewayforinnovation. AretirementcommunityinAlabamawhichhasbeentransformedbyasmallgroupofdriverlesstaxisshowsthepotentialofself﹣drivingcarstochangepeople'slivesinAmerica.AlthoughthemodifiedFordFusionsarecurrentlylimitedtoatwo﹣mileroadresidentsarealreadyhavingthebenefitsoftheseautonomousvehicleswhichallowthemtotakepartinsocialactivitieswhichwouldotherwisebeunabletoenjoysimplybecausetheycouldnotgettothem. Whentheexperimentalrunfinallyreaches15milesofroadtheseresidentswhoseaverageageis77willalsohaveaconvenientandreliablewaytokeeptheirappointments.BecausethesecarscontinuetoserveresidentsthereitisnotdifficulttounderstandwhyCaliforniaisgraduallysimplifyingregulationsforthebusiness. InNewJerseyahead﹣thinkingpolicieshavethepotentialtounlockotherhiddenbenefitsofautonomousvehicleespeciallyforthosewithphysicaldisabilities.TheNewJerseyDisabilityRightsCoalitionhasstronglyadvocatedforthedevelopmentofthistechnologysayingthatitcouldgivepeoplewithdisabilitiesgreateropportunitiesintheworkforceandenablethemtoleadmoresatisfyingandindependentlives. ManyAmericansadmitthatautonomousvehicleswillbethefutureoftransportationbutitistoooftenoverlookedthatthisfuturecannotarrivefastenoughformillionsofAmericanswhoareforcedtodependonothersforday﹣to﹣daytravel.ThepolicymakersshouldfollowtheleadofplaceslikeCaliforniaandNewJerseyandpassregulationstounlockthesehiddenbenefitsofdriverlesscars. 1WhatistheattitudeofmostAmericanstothefutureofautonomousvehicles A.Uncertain. B.Doubtful. C.Indifferent. D.Optimistic. 2WhatdoesFordFusioninParagraph2referto A.Thecollectionofsocialactivities. B.Thenameofaretirementcommunity. C.Atypeofautonomousvehicle. D.Atwo﹣mileroadforself﹣drivingcars. 3WhatdotheexamplesinCaliforniaandNewJerseyshow A.Theprogressofdriverlesstechnologyisheldback. B.Theuseofdriverlessvehiclesisnotsatisfactoryyet. C.Theagedanddisabledbenefitfromdriverlessvehicles. D.Commonpeoplehavenoaccesstodriverlessvehicles. 4Whatdoestheauthortrytoexpressinthelastparagraph A.Theconceptofautonomousvehicleshasn'tbeenrecognized. B.Theweakgroupsareoverlookeddespitetechnologyadvances. C.Futuredevelopmentofautonomousvehicleslooksdoubtful. D.Regulationsshouldgohandinhandwithdriverlesstechnology.
某项工程甲单独完成要45天乙单独完成要30天若乙先单独做20天剩余的由甲去完成问甲乙一共用几天可全部完成任务
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