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  • 2024年衡水金卷先享题 分科综合卷[无角标]语文(一)1试题

    评分细则:作文采用双评制。由基础等级+发展等级构成。一、基础等级(40分):主要依从内容、用材、结构、语言表达等指标权重。二、发展等级(20分:主要在审题立意、语言表现(感染)力、谋篇布局巧妙、思维或形式创新上酌情加分。1.主流立意:奥林匹克格言的更新,是由“竞技标准”向“价值标准”的延伸发展,由“体育技能”到“社会原则”的深度发展,由关注人类生理极限到人类社会发展瓶颈突破的认识发展,由关注人的“个体”到人类共同体的全局化发展。应注意考生在立意的深度和层次上的表现。2.语言表现力:普用成熟的写作技巧,让文章有冲击力、感染力和说服力。3.谋篇布局:能突破“总一分一总”的常见议论套式结构,有技巧的把文章的深度、广度,思维的成熟度表现出来。4.思维或形式创新:看待问题能草握系统性,发展性、辩证统一性、联系时代上有亮点;文章体式、行文结构有新意

  • 2024年衡水金卷先享题 分科综合卷 全国乙卷B 生物(三)

    ▣■■口口□12.衰老细胞中细胞核的体积增大,C错误。13.分析题图和题干可知,间隙连接通过相邻细胞膜上的两个连接子对接,间隙连接贯穿2层细胞膜,即2层生物膜,A正确;间隙连接通过相邻细胞膜上的两个连接子对接,间隙连接中心有允许物质通过的孔道,故间隙连接的存在能增强细胞与细胞之间的物质交换,B正确:间隙连接中心有允许信号分子等通过的孔道,由此可知,间隙连接与高等植物的胞间连丝均具有细胞间信息交流的作用,C错误;分析题意可知,细胞内pH值降低和提高细胞内Ca+的浓度,其通透性下降,由此可知细胞可通过调节间隙连接蛋白的空间结构来调节间隙连接的通透性,D正确。14.给绿色植物提供H2180,参与光合作用光反应水的光解释放的O2中发现180,同时H218O参与有氧呼吸第二阶段产生的CO2也具有180,A错误;叶绿体中类胡萝卜素不吸收红光用于光合作用,B错误;光合作用中突然停止光照导致光反应为暗反应提供的ATP和NADPH减少,从而使C3的还原产生C5速率减慢,短时间C5仍在与CO2合成C3,从而使C5的含量降低,C错误;根据光合作用的化学反应式,可通过光合作用中O2的释放量可计算出光合作用有机物的积累量,D正确。15.在甜樱桃根细胞有氧呼吸中CO2产生场所为线粒体基质,O2消耗场所为线粒体内膜,A错误;图中A、B、C三点中A点是有氧呼吸速率最快,在A点时在单位时间内与氧结合的NADH最多,B错误;据图分析,与清水组对照相比,一定浓度的KNO3溶液能减缓淹水时甜樱桃根有氧呼吸速率的降低,C正确;长时间的淹水会导致根细胞无氧呼吸产生酒精积累对其造成毒害,D错误。16.间期时的S期进行DNA分子复制,若根尖培养过程中用DNA合成抑制剂处理,细胞停滞在间期,故分裂间期细胞所占比例升高,A错误;观察根尖分生组织细胞的有丝分裂,细胞在解离的时候已经死亡,看不到纺锤丝牵引染色体的运动,B错误;b细胞着丝粒整齐排列在赤道板上,细胞处于有丝分裂中期,且洋葱根尖细胞染色体数为8对即有8对同源染色体,核DNA分子加倍,故b细胞含核DNA分子32个,C正确;在有丝分裂中,亲代细胞的细胞核内的染色体经复制后均分配到两个子细胞中,但细胞质中的遗传物质不一定均分配到两个子细胞中,D错误。二、非选择题:本题共5小题,共60分。17.(除特殊标注外,每空2分,共12分)(1)磷脂双分子层(2)核糖体、内质网、线粒体(答出2点)生物学参考答案·第3页(共6页)

  • 2024年衡水金卷先享题 分科综合卷 全国乙卷 英语(一)答案

    Inspired by real-life animal ambassadors Qiqi and Diandian,SDG Pandas are stickers that you can use inSDG PandasyourWhatsApphelppre the SDGand inspretio orbetterworld.Elyx,the United Nations'digital ambassador,uses various expressions and actions to help demonstratethe meaning of each Sustainable Development Goal.Created by French artist YAK,Elyx has no race,sex orSDG Elyxdisnver harter rmoting the mportace of the United Nationswork.21.Which program uses a game to promote the SDGs?A.Freerice from WFP.B.Prieda,C.SDG Pandas.D.SDG Elyx.海这,AoTh地g,22.What are inspired by real animals?A.The WFP's programs.B.Frieda's stories.C.The virtual stickers.D.The digital ambassadors.23.What's Frieda meant to do?A.Promote students'storytelling ability.B.Encourage financial donation for the SDGs.C.Guide hildrenin pratiin virtuesindaily life.D.Make the SDGsaserfor children to understand.BIt's been a long journey from1962 when Rick was born as a spastic quadriplegic(四肢雍瘓者)withcerebral palsy().Doctors told the young Hoyts that their son had no hope of a normal life.As Rick developed,his parents noticed he was far from avegetable as doctors had called him."Wecould tell by looking in Rick's eyes that he understood everything we were saying.We taught him thealphabet and numbers and did a lot of reading with him,"says Dick,the father.Then with the help of the Tufts Interactive Communicator (TIC),Rick was able to use his headmovement to tap out words and phrases.AAAs Rick was tapping out his first words,his parents debated over what he'd say.To their surprise,hisfirst words were "Go,Bruins!""We knew right then and there that he understood everything,and that heloved sports and followed the game just like anyone else,"says Dick.When Rick was in high school he wanted to take part in a 5-mile road race and he did finish the race.That night Rick tapped out a message that would change the course of his life.He wrote,"Dad,when I'running,it feels like I'm not disabled.""That wasavery powerful message for me,recall Dick.He knew he wanted to loan Rick his arms andlegs so he could compete in races.With the her uhn his disblednwheelchair,the father HoybeganningDickthatme pople houht he as seipushing his diaabled nracesThey thoughtIwas doing it for myself.They didn't understand Rick was the one wanting to race,"he says.THoyateve15nincudingand(三项全能运动),Rick was once asked if he could give his father one thing,what would it be?Rick responded,"The thingI'd most like is for my dad to sit in the chair and I would push him for once."24.What can be inferred about Rick as he grew up?A.He couldn't see.B.He couldn't speak.C.He couldn't think.D.He couldn't hear.27

  • 2024年衡水金卷先享题 分科综合卷 全国乙卷 英语(一)答案

    3.Whateinabouundewater volcanoes?A.They are fully understood.B.They can be controlled soon.C.They are really worth studying.D.They arc easy to photograph.4.What docs the underlined word "gauged"in the last paragraph probably mean?A.Reduced.B.Explored.C.Emphasized.D.Removed.8Volunteering for the local hospice(临终关怀医院)was a logical fit for Sandra Campbellof North Jackson,Ohio,when she retired from her career as an oncology (nurse.So,too,was the hands-on support that she has provided hospice patients in ber area for the pastfive years.She makes and donates quilts to the Oncology Fund for Outpatients to raisemoney to help cover the extra costs of cancer patients."I love making things for the oncologycare fund that donates to patients for gas and groceries.6"Sandra is one of many senior volunteers willing to put her money and resources where herheart is.According to research conducted by the Home Instead Senior Care network,amajorityfoerdonate financially to thergwhere theyvolterIn a survey released in July 2009 by the Corporation for National and CommunityService,ofevery three org reported increasing itsoertocopewith the economic downturn between September 2008 and March 2009."Mary,a92-yearold patient in hospice,had a really bad heart attack,and doctorsdidn't think she was going to live long,"Sandra explained."I provided companionshipsupport,and sherevdofmy quilts.She steadily improvedand et the hspcToday,Sandra is still visiting Mary,ow"She didn't want me to stop visiting,venafter she got better.It's very satisfying to know you're helping someone and making theirlife better as the end of their life approaches."A.I have donated a lot to them.B.But Sandra,now 61,doesn't stop there.C.And the help couldn't come at a better time.D.We don't change who we are when we get older.E.I don't like to tell others about the pain,and it isn't horrible.F.I have a little dog that I take with me on visits,and she loves it.G.Sandra also knows how important support can be to seniors and their families.Ⅱ,完形填空I believe in miracles (because I've seen so many of them.One day,a patient wasreferred to me who was 102 years old."There's a 10 in my upper jaw,"she said."I toldmy own dentist it's nothing,but he 11 I come to see you.Her eighty-year-old son accompanied (her.He would 12 to add something,but she stopped him.She wanted to tell everything herself.I found a large cancer that spreadover much of the 13 of her mouth.A careful examination later 14 that it was aparticularly bad sort of cancer.During her next appointment,I explained to her the 15 of the problem.She held myhand in hers and said,"I know you're worried about me,but I'm just 16."【题型专练A·英语(十)第2页(共4页)QG】

  • 2024年衡水金卷先享题 分科综合卷 全国乙卷 英语(一)答案

    (四)听力部分录音稿高之奠语(Tert 1)M:Could I meet Mr.Mason on Wednesday?Wefltiedup this week He ill be n businesiFriday.Could you manage nextModHe'll be available then.(Text 2)M:I really appreciate what you did to get the stage ready at such short notice.W:It's our duty.And it's our honor to have such a famous pianist perform here.(Text 3)M.This isavery expensive watch,but I've had trouble with it ever sine Ibought it Iinsist on seingthemer.W:Actually,there is no need for that,sir.You can exchange it for a new one during the return period.(Tert 4)W:Hello,I'm having a party on Saturday.Will you come?M:On Saturday?I'd love to,but I'm visiting my cousin in New York next Monday.And I have to spend the weekend buying him some gifts.(Text 5)M:It's good for pain relief.W:Shall I take it on an empty stomach or with food?M:Thirty minutes after meals.Come here again three days later.(Text 6)W:I'm having a problem with my car.Every time I start it up,the engine runs for a minute or so,and then dies.M:Hmm.Let's take a look.A weak battery?Uh,a possible fuel line?W:So,which one is it?M:Uhh.Difficult to say.Let me try this...Uh,alright...You need to talk to the repairman.W:The repairman!So,who are you?M:Well,I'm an assistant,and I've only been here on the job for two days.W:Oh,I wouldn't have wasted all this time with you!(Text 7)M:Hi.I have a reservation for tonight.I'm Mike Adams.W:Okay.Let me check here.Room 360.Here's your key.M:Thanks.Do you offer breakfast?W:Yes,it's included in the room rate.From 7 to 9 o'clock.M:Do you have wireless Internet in the rooms?W:We do...for $7.95 a night.M:And every room has a refrigerator?W:Well,we can have one put in your room for an additional $10 a night.M:Oh,I thought it would be free.W:Sorry,sir.It's just the way it is at this hotel.M:Oh,I've had it.I'll just try the hotel across the street.W:Okay,but you'd be canceling your reservation here and pay a cancellation feef%of the coof theoomM:Ahhhh,forget it.I can't win either way.What's my room again?(Tert 8)【2022分科模拟检测示范卷·英语参考答案第13页(共24页)QG】C

  • 2024年衡水金卷先享题 分科综合卷 全国乙卷 英语(一)答案

    2023届高三年级12月联考英语试题本试题卷共8页。全卷满分150分。考试用时120分钟。数蟈注意事项:事容题前,先将自己的姓名、考号等填写在试题卷和答题卡上,并将准考证号条形码答题卡上的指定位置。选题丽作答:选出每小题答案后,用2B铅笔把答题卡上对应题目的答案标号涂巢在试题卷、草稿纸和答题卡上的非答题区域均无效。如罪选择题的作答用签学笔置接雪在答意卡上对应的答题区域内。写在试题卷事和答题卡上的非答题区域均无效。4,考试结束后,请将本试题卷和答题卡一并上交。第一部分听力(共两节,满分30分)洲第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。每段对话后有个小题,从题中所给的A,BC三个选项中选出最项。听完每段对话后;你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话刷一遍1.Where will the man buy the chocolate?A.At the convenience store.B.At the supermarket.C.At the school store.长2.What will the man do tomorrow morning?A.Sell his mobile phone.B.Go to the hospital.C.Stay at home.螺3.How does the woman feel about getting a new TV?A.Upset.B.Uncertain.C.InterestedK4.Who is probably the man?A.The woman's father.B.The woman's husband.C.The woman's neighbor.5.Why was the man unhappy?A.He saw some young people cut in line.州B.He had to wait in line for an hour.C.He failed to get the ticket.痴第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白,每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项。听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟:听完后,各小题将给出5秒钟的作答时间。每段对话或独白读两遍。柄听第6段材料,回答第6、7题。6.What do the speakers want to do?A.Go to the picnic.B.Go swimming.C.Go cycling.7.What's the weather like now?A.Rainy.B.SunnyC.Cloudy.领听第7段材料,回答第8、9题。原阁8.How long did Henry play football this afternoon?A.3 hours.B.4 hoursC.5 hours.9.Why did Henry hate dining out with his friends?A.He still wanted to play.B.He was not hungry.C.He was too tired.高三大联考·英语第1页(共8页)

  • 2024年衡水金卷先享题 分科综合卷 全国乙卷 英语(一)答案

    .What does the underlined phraqrreledain pragra2C.Stolen.D.Eaten.A.Saved.B.Hunted.25.Why has Susan DeFrance bought the boat?A.She has planned to go sailing after retirement.B.It is much cheaper to live on a boat in the US.C.She wants to use it to get her children to visit her.D.It is a symbol of so stustown boat in the US.6.What does Susan DeFrance mean in paragraph 5?A.Her children are selfish.B.She is worried about the future.C.She wants to kill herself.D.It's not a good idea to live too long.27.What message does the author seem to convey in the text?A.The high inflation will calm down soon.B.The old people in the US are very lonely.C.The US government should help the retirees.D.Many Americans are suffering from serious inflation.CTen years ago,Dennis Sorensen was setting off fireworks to celebrate New Year's Evewith his family in Denmark.Unfortunately,something terrible happened and doctors had tocut off what remained of his left hand.Since then he has been using a standard artificial hand,which simply opens and closes so he can do basic things."When I'm at the grocery store I cancarry a bag,"says Sorensen."But the biggest problem is that I have to look at that thing allthe time to see that it's doing what I want it to do."So when he heard about an experimental hand developed by the Translational NeuralEngineering Laboratory in Switzerland that would let him feel again,he jumped at the chanceto try it."We have added sensors to each finger of the hand,then planted tiny wires in his armthat connected the sensors to nerves in his arm with the brain,"says Silvestro Micera,whohelped develop the prosthesis()."Our goal is to provide as much as possible naturalsensory information in real time in order to increase the usability of the prosthesis."Sorensen spent weeks testing the device."It was really amazing because suddenly myartificial hand and my brain were working together for the first time in ten years,"Sorensensays."It is very close to a normal hand that can tell the difference between an orange and abaseball.”The experiment was reported Wednesday in Science Translational Medicine and someresearchers are being cautious about the report."Whether this is useful in clinical applicationstill remains to be seen,"says Daofen Chen of the National Institutes of Health."I wonderwhether patients would be willing to undergo hours of operation to have the wires planted intheir arms and whether the device is too heavy to be used in everyday life."28.What does the underlined words"that thing"in paragraph 1 refer to?A.The bag.B.The prosthesis.C.The grocery store.D.The right hand.29.What is mentioned about Dennis Sorensen's new artificial hand?A.It can let him feel.B.The wires are planted in his brain.C.It is lighter in weight.D.It is very easy to put on and take off.30.What does Daofen Chen most probably think of the new device?A.Useful.B.Convenient.C.Expensive.D.Impractical.【2023年仿真模拟卷(二)·英语第4页(共8页)】新高考

  • 2024年衡水金卷先享题 分科综合卷 全国乙卷 英语(一)答案

    2.contadictorA.A secretary.B.A mana3.infectionC.A salesperson.第二节(共15小题;每小题1.5分,4.proof听第6段材料,回答第6、7题5.intervention6.Why is Vera making the call?Ⅲ.1.toA.To ask for the subway inform2.toB.To find the owner of the pass3.InC.To find her way home.4.to5.As第一节(供15小题;每小题2.5分,IV.1.We must come up with阅读下列短文,从每题所给some ways to solve the条见下期中缝)problem once and forKewDiscover the world of scienceall.living plants to be found across the2.Progress in means ofTickets and priceseducation is closely linked●AdultPEAK(Fe篇OFF-PEAKto the development of●Child(4to15)pEAKEescience and technology.OFF-PEAKNNonusband.●Child under43.The polluted water fromOpening time(非谓语动词作状语)the river was to blameWeekdays10 am-7 pm (last en专过身来喊道:“到底是for the deadly disease.Weekends10 am-8 pm (last en*Please be aware that the last entry4.In order to build the dam.before closing.s“Who on earththey will have to haveDirectionssome ancient buildingsPlan your journey to Kew Gardeasy-to-reach gates."Who on earthremoved to other places.☆By bike词作状语)5.Unlike their grandparents,We love to welcome cyclists totoday'scollege graduates(自行车停车架at all four gates.At考答案见下期中缝)racks are inside the gates.Bikes leftare not likely to stickrisk.We do not allow bicycles,tric芳责编常玥to onlyone job forscooters into the Gardens.their entire lives.本报文章大多选材于英美国★新课程·高三课标基础为4开4版学期员9激光排版本报激光照排中心向本报发行中心咨询以防假冒盗版行为(下转第23版中缝)10盘/张(含)以上包邮本报邮箱344

  • 2024年衡水金卷先享题 分科综合卷 全国乙卷 英语(一)答案

    参考答案Ⅱ.【主旨大意】本文是一篇记叙文。主要讲述了名医本杰明·5.To organize his Australian students to complete a stage musical.卡森的成长历程。小时候他曾被视作班上最笨的孩子之一,但妈妈专门为他制定了三条规则:只允许观看两部有救育意义的电视九年级(全)Units11~12节目;玩耍之前必须先完成作业;每周读两本书并写读书笔记。I【主旨大意】本文是一篇记叙文。主要讲述了作者偶然发现窗外在这些规则的帮助下,他变得越来越好。文章告诉我们:必要的的树上有鸟儿在筑巢孵蛋,她陪伴着小鸟长大,在鸟儿飞走的时候规则能帮助我们成为最好的自己。她很伤心,但是哥哥告诉她:还会有其他鸟儿来这里筑巢,因为这1.They thought he was one of the most stupid kids in the class.是生命开始和延续的地方。2.His mother.1.A2.B3.C4.C5.A6.C7.B8.A9.C3.Because they couldn't believe the boy could answer such a difficult10.Bquestion.☑思维拓展4.Yes,he did.1.A2.B3.B5.She was wise.Ⅱ【主旨大意】本文是一篇记叙文。主要讲述了作者在有了坏情绪IV.1.Can we eat in the classroom后,面对一些建议时的想法及行为以及最终在朋友的帮助下摆脱2.No,you can't/No/...了坏情绪。文章告诉我们:当发脾气听不进去别人的建议时,我们3.What else/Anything else/...可以写下自己的想法,也可以和信任的人去谈论自己的情绪或4.What are the rules in the library问题。5.You are welcome/It's my pleasure/My pleasure/That's all1.B2.B3.C4.C5.Aright/...Ⅲ【主自大意】本文是一篇说明文。主要介绍了四种让你更快乐、九年级(全)Units9~10更健康的方法。1.D2.C3.A4.E5.B1.【主旨大意】本文是一篇说明文。主要介绍的是世界上三个Ⅳ.【主旨大意】本文是一篇说明文。主要通过作者的高中经历告不同国家的文化俗。文章中介绍了巴西,日本以及印度三国在诚我们:在进入成年的最后阶段,我们要勇敢冒险,不怕失败,最终见面问候,接送礼物以及约会等方面不同的俗。会有一个光明的未来。1,A2.C3.A4.B5.B6.C7.A8.C9.C1.High school.10.B☑思维拓展2.Because it can bring him/her joy and friendship.3.Yes,he/she does.1.A2.BⅡ.【主旨大意】本文是一篇说明文。主要介绍了英国下午茶的4.The biggest regret is never acting in a play.发展史。5.Giving effort.V.【主旨大意】本文是一篇记叙文。主要讲述了Amanda是一个1.C2.C3.A4.C5.BⅢ.【主旨大意】本文是一篇说明文。主要介绍了中西方文化的善良的女孩,周围的人都很美慕她的好性格,但是Amanda说她之差异,我们应该了解这些差异,避免造成文化误读。前的性格并不是很好,后来通过制作拼贴画改变了自己不好的脾1.C2.D3.E4.A5.B气。故事告诉我们:要学会控制自己的脾气,做情绪的主人。微写作1.angry 2.how 3.When 4.never 5.feelings 6.explaining7.added 8.finish 9.me 10.clearlyEvery country has its own culture.We are supposed to respectthe differences.As an old saying "Do as the Romans do.",we以读促写should follow the local's customs if we go to a foreign country.AndVTask 1leaming differences among cultures will help us to get along with peo-①I was reading a book②tidying up things③play football④veple from different countries.ran to catch⑤I felt better⑥Write down your own list of ideasV【主旨大意】本文是一篇说明文。主要介绍了一名身在澳大利⑦Talk about亚的老师把中国的传统诗歌用现代音乐的形式展现给自己的学VTask 2生,这样既激发了学生学中文的兴趣,也增加了他们对中国传统DWe are/get ready to adjust our mood to meet the challenge.文化的了解。My teacher advised me to find a hobby to keep my inner peace.1.Li Bai.3You can listen to light music to take your mind off the problems.2.Because he tried to help his students better enjoy traditional Chi-4We can get rid of bad feelings by exercising.nese works.VTask 33.No,it isn't.Step 1By using Western music as a framework for the traditional Chinese审主题:控制情绪poem.审立意:增强理解他人及与他人相处的能力23

  • 2024年衡水金卷先享题 分科综合卷 全国乙卷 英语(一)答案

    保密★启用前2023年普通高等学校招生全国统一模拟考试英语2023.4注意事项:【命题:河北启光教育科技有限公司】1.答卷前,考生务必将自己的姓名、准考证号填写在答题卡上2.回答选择题时,选出每小题答案后,用铅笔把答题卡上对应题目的答案标号涂黑。如需改动,用橡皮擦干净后,再选涂其他答案标号。回答非选择题时,将答案写在答题卡上,写在本试卷上无效。3.考试结束后,将本试卷和答题卡一并交回。第一部分听力(共两节,满分30分)8做题时,先将答案标在试卷上。录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。1第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。每段对话后有一个小题,从题中所给的A、BC三个选项中选出最佳选项。听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。例:How much is the shirt?he0voT国A.£19.15.B.£9.18.C.£9.15.答案是C。oons visdil oved uov.tod s Jeol o7uoy II1.What is the man going to do?A.Cook a meal.B.Make some coffee.C.Go shopping.2.What is the woman?A.A hotel receptionist.B.A room cleaner.C.A house owner.3.Why does the man call?A.To buy books.B.To cancel an order.C.To make a complaint.4.How will the man return home after work?C.By subway.A.By carB.On foot.5.Where are the speakers?B.In the street.C.At home.A.At the theater.如第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白。每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项。听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间。每段对话或独白读两遍。听第6段材料,回答第6、7题。26.How does the woman sound?B.Annoyed.C.Concerned.A.Critical英语试题第1页(共12页)启光版权所有,使用月

  • 2024年衡水金卷先享题 分科综合卷 全国乙卷 英语(一)答案

    Malte Jung,an associate professor,said,"What we observe in this study is the impact thatAI has on social dynamics and some of the unintended consequences that could result fromintegrating AI in social contexts.This suggests that whoever controls the algorithm()mayhave influence on people's interactions,language and insights into each other."32.What is the text mainly about?好A.Methods of using AI in conversations.B.Efficiency of using AI in conversations.C.Convenience of using AI in conversations.D.Impacts of using AI in conversations.33.How do the researchers draw their conclusion?CA.By analyzing figures.B.By making use of AI.些C.By making experiments.D.By completing questionnaires.34.Which statement does Hohensten agree with?(A.AI always expresses in ways you expect.B.Algorithm will never influence people's insightsC.Trust can be affected by using AI in conversation.D.You will regain your voice by using AI in conversation35.How will a person feel about suspecting his partner's using smart replies?滞A.Nervous.B.Uncomfortable.C.Excited.D.Puzzled.第二节(共5小题;每小题2.5分,满分12.5分)阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为多余选项。We are now having face-to-face chats with friends instead of talking online.But have youever been in a conversation that you wish you could run away from?36A research team surveyed 806 participants about a recent conversation they had withsomeone close to them.The participants were asked about the actual length and their expectedlength of the conversation,and how long they thought the other person wanted to talk for.According to the team's paper published in the journal PNAS,about one-third of theconversation length was unwanted.37(On average,they continued talking for 3.87minutes before they sensed that the other speaker,too,wished to end it.Situations are similarwhen it comes to strangers.Only about 1.6 percent of the conversations ended when both partieswanted them to.The paper pointed out that when they talk to strangers,what makes people "mask theirdesires"may be their politeness.When talking to close friends and family,it may be their高三英语试题第8页共12页

  • 2024年衡水金卷先享题 分科综合卷 全国乙卷 英语(一)答案

    then,that he had all his strawberries for his sick mother.were offeredHis wild strawberries 77 to his mother joyfully as soon as George got home"And you saved them for your sick mother.didn't you?she said laying her hand genhis head,with 78 in her eyes.tearsCould eating the strawberries give George half the79 he felt at this moment?Of coursehaphin essnot.Have you ever gotten the same feeling of joy as George?九、书面表达(共15分)请将短文写在答题卡相应的位置上。《2023中国诗词大会》第三期以“燃”为主题。高燃人生是少年立志奋发向上,是迎难而上刻苦奋进,是不畏失败挑战自已…。身处凡,却仍然找寻自已的高燃时刻,这种“燃”精神。正是我们的青春姿态。The True Meaning of "Ran"try to overcome the troubleface the failure bravelywork hard for my dreamIlect请围绕本期主题“燃”,结合生活中的经历,分享一下自己的高燃时刻。内容包括:ol1.选择一个方面,谈谈你对“燃”的理解;ere2.围绕选择的方面,描述生活中的一次经历;3.这件事带给你的思考。9803106inis要求:U802A11.词数不少于80词:ed2.文中不能出现真实的人名、校名。的间内从,容内金的民题一膏中底货黑米土手西答mo o inovo obn4可1o20bb0

  • 2024年衡水金卷先享题 分科综合卷 全国乙卷 英语(一)答案

    参考答案number is 010-8756.Linda is friendly and hard-Yours,working.She is good at English,and she helpsLi Huame with it.Unit 2 This is my sister.第1课时Section A1a~2d22.What is/What's her name23.is;are 24.family;house;home小题练词句25.A 26.Have a good day/time/...1.family 2.parents 3.mother 4.brother微语篇提能力5.grandfather/grandpa 6.sister7.has【解析】根据“takes'”可知时态为一般现I.【主旨大意】本文是一篇说明文。文章对作在时,主语“he”为第三人称单数,谓语动词者一家在公园的照片进行了详细介绍。同步应用单三形式。故填has。1.father【解析】形容词性物主代词后应填名课8.sees【解析】根据主语“Cindy”为第三人称词。结合句中“The man”及备选词汇可知,时单数可知此处谓语动词应用单三形式。故此处指“我的父亲”。故填father。分填seeso2.his【解析】分析句子结构可知,此处应填形练9.are;teachers【解析】根据答语中的“They容词性质的词修饰job。根据主语“He”并结are”可知be动词应用复数形式;teacher应用合备选词汇可知,此处应填形容词性物主代Unit其复数形式。故填are;teachers.词。故填his。210.grandparents【解析】根据“Are”可知,此处3.Who【解析】根据下文中的“They are my应用可数名词复数形式。故填grandpar-4.”并结合备选词汇可知此处ents。询问是谁,选词who。注意句首单词首字母11.These;those【解析】第一空根据“cats”可需大写。故填Who。知此处应用复数形式;第二空根据“dogs”4.sisters【解析】形容词性物主代词后应填入可知此处需用复数形式。注意句首单词首名词。根据“They”和“Mary and Betty”并结字母需大写。故填These;those。合备选词汇可知,此处指“我”的两位妹妹12.days;meets【解析】根据“These”可知此姐姐,应填可数名词复数形式。故填sisters。处应用可数名词复数形式。根据主语“He”5.have【解析】have a good day为固定短语,为第三人称单数可知,谓语动词应用单三表示玩得愉快。根据主语为“We”可知,此形式。故填days;meets.处应用动词原形。故填have。13.my family;Who is 14.Her grandfatherⅡ.【主旨大意】本文是一篇说明文。主要介绍15.My two sisters 16.Are those了Dave和他的家人。17.Tony's brother;their mother1.B2.A18.Good morning3.B【解析】细节理解题。题干意为:Mike是19.What is that谁?根据第四个表格中的“I'm Dave.”和20.Who is the man"And I like to play basketball with my friend21.Is the girl your sisterMike.”可知Mike是Dave的朋友。故选B。万唯七年级QQ交流群:68857019911

  • 2024年衡水金卷先享题 分科综合卷 全国乙卷 英语(一)答案

    B.The unfavorable future of electric cars.C.The eagerness for a zero-carbon future.D.The reasons for not achieving a zero-carbon future.DFor most people,death is hard to think about.We tend to avoid the subjecinvoutarily,even.The philsopher Stphe Cave ffersxtion for thisavoidance in his2012 bookmmeath,he writes,"presents itself as bothinevitable and impossible.Yourationlly that you will die,yetstruetounderstand your nonexistence.Put another way,you cannot be conscious of your ownnonconsciousness.Sowe dismiss death fromour thoughts.But this leads us to make choices in life thatactually reduce our happiness.People who express more regrets tend to be those whopostponed profound activities that yield meaning,such as appreciating beauty orspending more time with loved ones.When we avoid thoughts of death,weunconsciously assume that tomorrow will look a lot like today,so we can do tomorrowwhat we could today.But when we focus on death,that increases the stakes at play inthe present,and clarifies what we should do with our time.By forcing ourselves to think about death,our resources-use decisions change.I askmy 20-something graduate students to estimate how many Thanksgivings they realisticallyhave left with their parents,and then to consider how they should spend those remainingoccasions.This usually stimulates a strong emotional reaction.But it can also alter suchdecisions as where they choose to live and work.This highlights that facing discomfortand thinking seriously about the impermanence of your mortal life are important formaking decisions that enhance your happiness.There are other benefits.For example,paradoxical though it may seem,considencorage positive thinking,as researchers found in 2007 Peopleprepar their death tended to focus on favorable emotional informationaround them,and to interpret random words in a pleasanter way.You begin to thinkextremely clearly,and realize that you have a choice about how to see the presentmoment-and choose the positive.If you insist on ignoring your own death,you are likely to make decisions that causeyou to sleepwalk through life.You may not be dead yet,but you're not fully aliveeither.If you can look across that border with resolve and confidence,you willexperience every day fully and deeply.32.What is the main idea of paragraph 1?A.People's fear of death.B.People's escape from death.C.People's acceptance of death.D.People's struggle against death.33.What will happen to us if we don't focus on death?A.Enjoying a lot more happiness.B.Taking better advantage of time.C.Postponing big things until tomorrow.D.Engaging in more meaningful activities.英语试题(一中版)第6页(共10页)

  • 2024届衡水金卷先享题 [调研卷](六)6理综(JJ·B)答案

    ②由图可知p点时,设CHs的起始投入量是1mol,转化量为xmol,则有:1-x=60%,解得0.25,因此1+x转化率为25%;C3H8的物质的量分数是60%,则C3H6和H2的物质的量分数都是20%,因此Kp=0.1MPa×0.2)210.IMPax0.6-150MPa。(3)根据生成C3H6的净反应速率v=k·P(C3Hg)·P2(H2),随反应进行,C3Hs的分压减小,有利于净速率减小,H2的分压增大,也有利于净速率减小,因此,进行相同反应时间C3H6的增加量变小。(4)1个晶胞中AH4,顶点:8×=1,面上:4×=2,体内:1,AH4共4个(或1个晶胞中Na,面上:826区,棱上:4松,Na英4个),则-个品胸中有4个NaA,一个晶跑的质量为4X544一g,一个晶胞的4x2x10g8cm3-108x1024×54体积为2a3nm3=2×10-21a3cm3,晶胞密度为Vaxa8cm。30.(14分)(1)醛基、醚键(2分)消耗产生的HC1,促使反应正向进行(1分)CH-CHOCH(2)OCH(2分)D(1分)三重教育(3)还原反应(或加成反应)(1分)CH,CICH,-PO(OC,H>)20CH:+P(OC2H53+H0之OCH2+HC1+C2H5OH(2分)◇(4)22(2分)CH,CICH,CICH2-P0(0C2H)2CH=CH0,/CuP(OC,H )(5)△H,0CH=CH(3分)CH,OHCHOCHO【解析】(1)根据B的结构简式可知,含有的官能团醛基、醚键;A→B产生HCI,加入N2CO3的作用是消耗产生的HCl,促使反应正向进行。CH=CH〈OCH,(2)根据已知信息Ⅱ可知,F的结构简式为OCHF中含有碳碳双键,所以最合适的检测试剂为溴的四氯化碳溶液。(3)根据B→C的反应特点可知,该反应为还原反应或者加成反应;DE产生了C2H5OH,结合D和E的结构简式可写出反应的化学方程式。(4)含有一个-CH0和0),另有一个饱和碳原子,分情况讨论:化学参考答案第4页(共5页)

  • 2024届衡水金卷先享题 [调研卷](二)2理数(JJ·B)答案

    10AP满足(y一2x)(+2+1)≤0,等价于)2≤0.或.|y2x≥0,对应图形中S,S区域,x+2y+1≥0x+2y+1≤0,y-2x=007x2yt1-0由于直线y=2z过圆心且与x+2y十1=0相互垂直,由圆的对称性可知S,=S,S=S4,所以S+S,一S+S2=号S,放所求概率P-故选A1.D由题意知F(0,多),设A(aM),B(2),C(x%),所以S=0F=1x,所以S若-名,同理等-若为,等=名.又等+9+5号=3,所以号(0n十十)=3,所以十十华又5为△ABC的重心所以十专边-号,即是-号,所以2,所以孩能物线的方家为=3故选D12Bfo=e1-f)=ex-1,了)]'-e-1.令Lf(]'=C-1>0,得x>0,所以f(x)在(0,十∞)上单调递增,同理可得f(x)在(-∞,0)上单调递减,则f(.x)≥f(0)=0,则f(x)在R上单调递增,j02》=e:-1020号>0,所以心12令g=nx。)=,当x((0,e),g(x)>0,x∈(e,十∞),g(x)<0,所以g(x)在(0,e)上单调递增,在(e,十∞)上单调递减,所以g≤ge-0h≤,n323.2是号1185,则a>,V120,x(1,+o,所以h(x)在(1,十∞)上单调递增,同理得(在(0,1)上单调递x2减所以)≥)=0,nz≥1-h32=1+h3.21+132>28>1125>1.1>12,所以c>b,综上a>c>b.故选B.13.2-苦-1答案不唯-,符合-苦=Q≠0)都可.14.9由asB-一A=音c及正弦定理得sin Acos B如BasA-号sinC-青sin(A+B)-专n Acs B-叶专ns,得sin Aos B-=9n5BosA,所以mA=9mB,所以合-915,20π由题意知该几何体为三棱锥,其直观图如图所示,O为BD的中点,且A01面BCD于O,A0=OC=3,AD=AB-BD=DC=BC=2V3.A4DD,00B2B【冲刺卷·理科数学(一)参考答案第2页(共6页)】

  • 2024届衡水金卷先享题 [调研卷](二)2生物(JJ·A)试题

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    【解题思路】26.D【必备知识】宋代文化(绘画艺术)【解题思路】由题干材料可知,康有为将公车出国门看世界和扩


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    普通高等学校


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  • 2024届衡水金卷先享题 [调研卷](三)3思想政治(JJ)答案

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    MnhapC.该运动员所受的合力不断诚小全国100所写示范D.斜坡对该运动员的作用为一定是竖直向上的18


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  • 2024届衡水金卷先享题 [调研卷](三)3理综(JJ·B)试题

    C.空间站的线速度小于地球赤道上物体随地球自转的线速度K)与温度TB.向FcNO2溶液中滴加盐酸,有气泡产生:3Fe”+NO,+4H=3Fe+NO1+2H0D.若考虑稀薄大气阻力且无动力补充,则空间站速度会越来越小反应②对应的C.向淀粉K1溶液中滴加84消毒液,溶液变蓝:2I+C10+2H-15+C+H,017D列简谐情波沿轴某一方向传播,Q是衡位置位于一4加处的质点,质点QD.向银器上滴H,S溶液,空气中放置一段时间银器变黑:4Ag+2H,S+0,-2Ag,S+2H,0动方程为y=20sin+号)cm,1=0.75s时,x=4m和x=16m之间的波形如图molH2进行反应12.“海水淡化”的方法有很多,电渗析法的技术原理如下图所示两端为石墨电极,已知海则()1.0,则衡体系水中主要含有:Na、K、Ca2、Mg、CI、HCO、SO,2等离子。A.该波传播的速度大小为8m/s(保留3位有效下列说法不正确的是(0)B.该波沿x轴负方向传播A.淡水出口为bcHO),其速率C.t=0时刻,坐标原点处质点的位移为y=10cm-20B.丁室产生的水垢最多别为a+1、a、d-C.甲室的石墨表面可能发生:2H,0-4e=4H+021D.质点Q在3s内通过的路程为12mD.若将所有的阳膜和阴膜互换,仍然可以得到淡水18.2023年2月中国快递同比提升11.1%,总体来看行业规模实力有所增强,服务能13.常温下,向10mL0.2moL1的某二元弱酸H,R中滴加NaOH溶液以调节溶液的pH,步提升,发展态势持续向好。某快递公司为了提高效率,使用电动传输机输送快溶液中HR、R、R2的物质的量分数(6)随着pH变化情况如下图所示,下列有关如图所示,水传送带AB长度L5,25m,始终保持恒定速度-1ms运行,在传圈上A处轻轻放置一快件(可视为质点),快件与传送带之间的动摩擦因数山=02,然说法中正确的()由静止开始加速,与传送带共速后做匀速运动到达B处,忽略空气阻力,重力加数A.a点时,cHR)=cHR)0.moL取g=10ms2,下列说法正确的是())B.c点对应的横坐标为2.6502C.b点溶液中:cH=c(OH)+3cR2)A.快件所受摩擦力的方向与其运动方向始终相反D.NaHR溶液中,cNa>cHR)>cHR>cR2)B.快件先受滑动摩擦力作用,后受静摩擦力作用→C.快件与传送带的相对位移为0.5m。其中H0名二、选择题:本题共8小题,每小题6分,共48分。在每小题给出的四个选项中,第1418题只有一项符合题目要求,第19~21题有多项符合题目要求。全部选对的得6分D.快件由A到B的时间为5.5s说法不正确的是选对但不全的得3分,有选错的得0分。19.如图所示,A、B、C、D、F是半径为R的圆周上五点,AF为直径,B、C、D三14.C0发生衰变会释放B射线和Y射线,伽玛刀是利用”Co发生衰变释放的某种射线工半圆弧均分,整个空间存在行于圆面的匀强电场,从A点沿圆面向各个方向射出作的。利用中子照射稳定的器C0可以制备C0,已知”C0的半衰期约为53年,则为m、电荷量为+g、速度大小为的带电粒子,到达B点的粒子速度大小为2,验下列说法正确的是(/)C点的粒子速度方向沿AC连线延长线方向,不计粒子间的相互作用和粒子的重力A.伽玛刀是利用C0发生B衰变释放的B射线工作则下列判断正确的是(/)B.中子照射稳定的C0制备C0是原子核的聚变A.电场方向行A、F连线C.1kg的C0经10.6年有0.25kg发生衰变B.圆弧上D点电势最低胞中氢键的键长D.Co发生B衰变时释放的Y射线可以用于工业探伤15.用双缝干涉测量某种单色光的波长的实验装置如图所示,下列说法正确的是(C.A、F两点的电势差为49无片单缝双转轮D.匀强电场的电场强度大小为3V2m2qR20.如图所示,AB是固定在竖直面内的四分之一圆弧轨道,0为圆心,OA竖直,从0A先放上单缝和双缝,再调节光源高度使光束沿遮光简轴线照在屏中心水向右抛出一个小球,不计小球的大小,则(月))成G的路线图如B.调节时应尽量使各器材位于一条直线上,单缝与双缝相互垂直A.小球落到某一位置的速度方向可能与圆弧面垂直B.小球初速度越大,小球落到圆弧面上时的速度方向与竖直C.将屏移近双缝,干涉条纹间距变窄方向的夹角越大COOC HD.将单缝向双缝移动一小段距离后,干涉条纹间距变宽16.2022年11月29日“神舟十五号”飞船顺利发射,六名中国宇航员完成首次空间站交按C.小球初速度越大,小球落到圆弧面上时的速度一定越大班。已知空间站绕地球做匀速圆周运动,轨道离地面高度为方(h低于同步卫星高度)。D.小球落到某两个位置的速度大小可能相等地球半径为R,地球对空间站的引力大小为F,空间站的总质量为m,下列说法正确的21.如图所示,MN和P四是电阻不计的光滑行金属导轨,其间距为L,导轨由弯曲部和直部分组成,二者滑连接,导轨右端接一个阻值为R的定值电阻。虚线4C是(了DE与直部分的导轨垂直,CE的距离为d,DE左侧(含DE)的导轨处在竖直向A.空间站在轨运行时的动能为,FR+)的磁感应强度大小为B的匀强磁场中。质量为m、电阻为2R的金属棒从导轨上离于F直部分高为方处由静止释放,释放的位置离导轨直部分左侧AC的水距离也为B,空间站在轨运行的周期为R+金属棒沿导轨运动到DE处速度恰好为零。已知金属棒与导轨间接触良好且始终与乡卷·A10联型2023届高三4月期中考·理科综合能力测试第3页共10页乡卷·A10联盟2023届高三4月期中考·理科综合能力测试第4页共10页

  • 2024届衡水金卷先享题 [调研卷](三)3理数(JJ·B)答案

    sin BCD'可得BD=8/2,即BD的长为82.BD…6分2∠ACB=o(∠CD-∠AD)=子×g+专X25-要55.coS∠ACB=5.:在△ABC中,BC=2,AB=4,5.AB2=BC+AC2-2BC·AC·cos∠ACB,可得16=4十AC-2X2XACX5,解得AC=25.5.AC的长为25.…12分18.解:本题结合“乡村振兴”实际背景考查统计概率,要求学生在感受时代建设的同时,增强社会建设的参与感与责任感,会应用所学知识进行有关概率及期望的简单运算.(1)设“选手甲被淘汰”为事件A,…1分因为甲答对每个题的概率均为。,所以甲答错每个题的概率均为亏,2…2分则甲答了3题都错,被淘汰的概率为(2)=81253分甲答了4个题,前3个1对2错,被淘汰的概率为Cg(名)严×3X2725625…4分甲答了5个题,前4个2对2错,被淘汰的概率为C(3)2·()2X2243253125…5分5所以运手甲被湖法的概本P(A)=武十器十锅器6分(2)易知X的可能取值为3,4,5,对应甲被淘汰或进入复赛的答题个数,…7分则PX=3)=C(停y-c(停)=云…8分22345…9分PX=5)=C(g)P×(号)-62510分X的分布列为X345P(X)23421625625625…11分则0=8×号1×器5×器器.…12分19.解:本题考查空间立体几何,要求学生了解空间线、面关系,会根据具体问题证明立体几何中的线面行关系,并且会建立空间直角坐标系,将空间角的问题转化为空间向量的运算问题.(1)连接AC,记AC与BD的交点为H,连接MH.由∠BAD=∠A=o,得ABCD,带-是=又器则提-兴'.AP∥MH,又MHC面MBD,PA中面MBD,.AP∥面MBD.……4分(2)记O为CD的中点,连接PO,BO,全国100所名校最新高考冲刺卷·参考答案第4页(共8页)【22·高考样卷·数学理科(二)一N】

  • 2024届衡水金卷先享题 [调研卷](三)3理数(JJ·B)试题

    周测卷二1.D解析:选派方案的种数为A=5×4×3=60.2.C解析:因为A+1-A=12,所以(n十1)n-n(n-1)=12,整理得2n=12,解得m=6.故心-C-8-15.3.D解析:相当于10个元素选3个元素排列,A。=720.4.B解析:分两类:一类是选1个女生,则有C2C种;另一类是选2个女生,则有CC4种.所以不同选法种数共有C2C2十C号C4=16.5.B解析:分两类:一类是千位数字为3或5,先排千位,再排个位,最后排其他位数,共有A2AA=24个;一类是千位数字为4,先排千位,再排个位,最后排其他位数,共有AAA=6个.所以总共有24十6=30个.6.D解析:先考虑同学A与B相邻,把A、B作为一个元素有A?种方法,而A、B可交换位置,所以排队种数为2A?.又当A、B相邻且满足A、C相邻时,排队种数为2A.所以满足条件的排队种数为2A号一2A=8640.7.120解析:从0到9这10个不同的自然数中选3个不同的数,从大到小排列,得V=C。=120个.8.378解析:分两类:一类是次品1件合格品3件,抽法种数为CgC3;另一类是次品0件合格品4件,抽法种数为C8C.所以次品少于合格品的抽法种数共有C3C8十C8C=378种9.解析:(1)是排列问题,共有A=56个不同的商;(2)是组合问题,共有C=28个不同的积:10.解析:(1)分两步:第一步,排2个小品节日有A虽种:第二步,排余下的6个节目有A8种.所以排法总数为A号A6=1440.(2)分四步:第一步,排开始的演唱节目有A3种;第二步,排结尾的舞蹈节目也有A种;第三步,排余下的4个演唱和舞蹈节目有A种;第四步,将2个小品节目排在6个节目的中间5个空档中有A?种.所以排法总数为AA3AA=4320.·2·【22·ZCYK.数学·参考答案一RA一选修2一3(理科)一Y)

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    设高三(3)班学生身高的方差为2,则2=(162.5-170.5)2×8+(167.5-170.5)2×12+(172.5-170.5)2×10+(177.5-170.5)2×8+(182.5-170.5)2×24033.5.12分19.解:本题考查面面垂直和空问点到面的距离,要求考生理解空问点、直线、面问的位置关系,能用面几何知识解决空间距离问题,取AC的中点F,连接EF,BF,DF(1)因为底面△ABC为等腰直角三角形,∠ABC=90°,F为AC的中点,所以BF⊥AC,BF=1.…2分因为AD=4,所以EF=2,因为BE=√5,所以BF2+EF2=BE=5,所以BF⊥EF.…4分因为EF∩AC=F,ACC面ADC,EFC面ADC,所以BF⊥面ADC,因为BFC面ABC,所以面ABC面ADC.……5分(2)因为DF=√/42+12-2X4X1Xcos120°=√/21,BF=1,所以BD=√/22,因为△ABC为等腰直角三角形,∠ABC=90°,AC=2,所以AB=√2.…7分因为AD=4,AB=2,BD=V22,所以22=16+2-2X4XV2×os∠BAD,所以cos∠BAD=-2,所以sin∠BAD=V1441…9分设点C到面ABD的距离为h,因为Vc-ABD=VB-ACD,…10分所以号×}×1X×A=吉×合×4x2×9×1,所以A-27·…12分20.解:本题考查函数与导数,要求考生理解导数的几何意义,了解利用导数求参数的范围。-asin x(xe'-3x2)-[(x+D)e-6x(acos x)(1)因为f(.x)=c0sx(xc3r2)2…3分π所以f(空)=a2n 2ef-3解得a=…5分(2)因为f(x)=sinxC0在(0,元]上恒成立,所以有cosx3一在(0,1上恒成立xe-3xcos a…7分cOs ,V=e3,易知a>0,记y=sin,,因为'-nx+心sosm(-snD_n+_血22Z,所以在(0,]上y'>cosxcosx2cosx0,即函数=如在(0,元]上单调递增,……10分cOS x因为y2'=e是,所以在0,晋上为>0,所以y=心-是:在0,至]止单调递增,且%>0,…11分所以≤3·所以a≥年i-a16,…12分421.解:木题考查椭圆方程及直线与椭圆的位置关系,要求考生掌握椭圆的标准方程,了解椭圆的简单应用.(1)设稀因C的标准方程为号十芳-1a心心0》,由题意可得2a4,反,2%-1.即a2区62,故稀同C全国100所名校最新高考冲刺卷·参考答案第4页(共6页)【22·CCJ·数学文科(二)一N】

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