则S818(a+as】=0,即a+as=0,2可得2a+17d=0,则d=174
24-25上高三牛津（AHW)第21期参考答案第2版LANGUAGE LEARNINGI.A 1.earn a living2.opportunity3.Gradually4.talent5.eventually6.breast7.retired8.challenge9.entirely10.toughB1.issued2.highlight3.featured4.representing5.symbol6.million7.borders/boundaries 8.quoting9.apply10.rubbingⅡ.A1.platforms2.complicated3.impact(s)·4.substantial5.concerns6.exposed7.essentialB 1.distant2.cotton3.combined4.rare5.theories6.atmosphere7.obtain第3版LANGUAGE LEARNINGI.A1.skipping2.reduce3.identify4.minerals5.sources6.shocked7.experimenting8.conducted9.flavoredB1.sampled2.supplies/sources3.fundamental4.conservation5.commercialII.A 1.phenomenon2.familiar3.disappear4.specific5.regularly6.stressedB 1.officially2.departed3.purchased4.launch5.fellow6.priority7.detail8.mindset9.deserve10.commented
第9期参考答案3.pick up 4.go away第1版5generally speaking6.我的其他朋友听下面一段对话，回答第8至10小题参考答案主题阅览室7.发带8.…和…之间的联系M:Someone is at the door.Who could it be?W:It might be your neighbor.1-5 CACABI.6-10 ACCBA源分享I.1.Over 2,200 years9.行宇宙10.被称为：被认为是M:It can't be my neighbor because my neighborⅢ.11-15 BABCA2.Because the Yellow River flooded the areaSection B(含Grammar Focus部分】finishes work at 6 o'clock.Now it's only 3IV.16.late 17.host18.laboratory/labmany times over the centuries../Because of1.think of/about 2.feel sleepyo'clock20.cookthe Yellow River.19.vegetables3.run after 4.run for exerciseW:It might be your mother.You said your motherV.21-25 CABDA26-30 ARCDR3.Its size./Its population./.5.communicate with sb.6.point outwas coming over to see you today.VL 31-35 DACROII.1.Bianzhou 2.Dongjing 3.Bianjing7.二群8同时一起9.以某种方式M:It can't be my mother.She is not feeling well36-40 DACBD41-45AADCD46-50 BCDAD4.Kaifeng 5.Kaife10.为了一个特殊的目的11.在很长一段时间内today.She is taking a rest at home.VII.51-55 DEAGC第3一4版W:It might be your family doctor.VII.56-58 BDASection A第5一6版59-62 BDBB基础巩固Unit8综合能力评估试题M:Oh,that's right.It must be my family doctor.I63-65ABD66-69 DCCA听力材料及参考答案told him to come at 3 o'clock.70-72CCA1.anybody 2.rabbits 3.whose 4.trucksII.1.Generally speaking 2.is known as听力材料Ⅲ.短文理解73.They help children learn about dogs.I,短对话理解I found a schoolbag in the English club.It74.Frida,a golden Labrador.3.attending the concert 4.picked up the books5.parallel universes1.M:Whose baseball is this?must belong to a member of the club since nobody75.It introduces some kinds of working dogsW:It must be Alan's.He is on the baseball team.else comes to this room.There areonly sevenand their iobs扫码6.a the link between exercise and能力提升2.M:Is this notebook Cindy's?members so it should be easy to guess whose it is.IX.76.circle 77.position 78.lying1Have youseen it anywhereW:I'm not sure.I think it might be Gina's.It'sThere is a blue hair band inside so the person can't79.suit 80.preventbe a boy.There are only three girls in the club.TheyX.One possible version:2.I completely forgot about it/I can't rememberwhite.Gina likes whitethat/I forgot3.W:Where is Cindy?I can't find her.are Sally,Jenny and Judy.I know that Jenny alwaysSaturday3.checked/looked 4.find 5.easierM:I just saw her in the laboratory.She might stillwears a hair band so it might be hers.There isSomething interesting happened today.I wascomputer magazine but none of them are interestedinvited to attend a lunch party with some关注Grammar Focusbe there.n基础巩固4.W:Look,there is a scarf on the teacher's desk.computers.There is a baseball so it should beclassmates.At first,I had some doubt because I14RRADSally's or Judy's because they are on the baseballWhose is it?usually ate lunch alone.I was worried that they能力提升team.Oh,there is a family photo.Aha!It's Judy'smight pity me or even laugh at me again because of1.must 2.couldn't 3.could 4.mightM:It could be Ms.Marley's.She likes wearingfamily photo!Oh,I remember that she has a brothermy food.But the party was amazing!Everyone5.could 6.could 7.could 8.mayscarves.Let's call her and ask.and her brother is interested in computers!Thebrought so manydifferent dishes.Since no one5M:You must like yellow very much,Vera.Theschoolbag must be Judy's.V.信息转换brought any bread,they all had some of mine!It feltliving room,kitchen and dining hall were alllike a real picnic.I enjoyed talking and laughiI.1.circled 2.medical 3.victoriespainted yellow.I'm Holly.Today I want to tell you about mywith everyone.For the first time in a while,I didn't4.enemies 5.leadersW:No,I like blue,actually.My mom likesneighbor,Mr.Smith.He has been living in thefeel bad about myself.It was really kind of them toII.1.prevent illness(es)1.长理house next to mine for five years but he seldomnclude me.and it telt so warm I honewe can have2.run after two rabbitstalks to me.His job remains a mystery to me,andmore lunch parties like this.I won't feel sorry for3.received two thousand visitors/tourists听下面一段对话，回答第6至7小题。've made a few guesses.Firstly,on weekdays,hemyself because I have such great friends.4.to wear a suit 5.at the same timeM:There is a hair band on the piano.Is it yours.leaves his house late at night and returnsearly in theToday was a good day!能力提升Linda?morning.I think he might work at a radio station orI.told 2.purpose 3.picnic 4.mysteryW:No,it's not mine.Mine is on the tablesomething.He might be a host.Secondly,his house教教5.valuable 6.guard 7.hard-working教M:Whose is it then?looks like a laboratory.He is often seen wearing a8.attend 9.period10.(to)spreadW:It might belong to Lisa.She likes wearing a hairwhite lab coat,even when he goes out to check his学Lexical Chunksband.mail.He could be an inventor or a scientist.Thirdly英语教学育Section AM:But she doesn't like anything pink.She likeshe has a big garden and different vegetables are资经资I.belong to sb.2.attend a concertgrown in his garden.I think he might be a food▣orangescientist or a cook.What's your opinion?源验
1、[第一行九年级 第二行科目]安徽省2024-2025八年级无标题[阶段性练一]历史答案1、安徽省2023-2024学年第五次 同步达标自主练·九年级化学答案1、安徽省2023-2024学年第五次 同步达标自主练·九年级地理答案2、安徽省芜湖市2024-2025学年度第一学期九年级素质教育评估试卷政治答案1、安徽省芜湖市2024-2025学年度第一学期九年级素质教育评估试卷政治答案1、陕西省2024-2025学年度第一学期九年级阶段性学效果评估（四）政治试题3、陕西省高一2024-2025学年度第一学期阶段性学效果评估(二)2政治(YC)试题1、陕西省2024-2025学年度第一学期九年级阶段性学效果评估（四）政治试题1、陕西省2025届九年级教学质量监测10月（☆）历史试题4、安徽省芜湖市2024-2025学年度第一学期九年级素质教育评估试卷政治答案1、［湖南大联考］湖南省2025届高三年级阶段检测联合考试（10月）地理试题1、金太阳云南省2024-2025学年高二年级开学考(25-12B)生物B1答案
1、山西省2023-2024学年度第一学期九年级阶段性练(三)3化学答案1、山西省2023-2024学年度九年级第一学期阶段性练(一)化学答案A.该阴离子中X、W的化合价都是十4(⑥)随pH变化的关系如图所示。B.简单离子半径：W>Z>YHA2、陕西省2024-2025学年度第一学期九年级阶段性学效果评估（四）化学答案1、4陕西省2023-2024学年度九年级第一学期阶段性学效果评估(四)化学试卷答案1、陕西省2024届九年级教学质量检测生物试题200-◆种3、江西省2025届九年级训练（二）化学试题1、江西省2025届九年级训练（二）物理试题1、江西省2025届九年级训练（二）政治答案1、江西省2025届九年级训练（二）历史试题
13.25℃时，调节浓度均为0.1mol·L-1的R,C00H、R,C00H、RC00H溶液的pH(R1、R2、c(RCOOH)R,均为烃基)，酸分子的分布分数δ(RC0OH)[6(RCOOH)=c(RCOOH)+c(RCOO)随pH的变化关系如图。下列说法正确的是◆6(RCOOH)/%100RCOOH
·化学·参考答案及解析(5)由图中数据可知c(GaO)=l0-smol·L1时，溶液件是升高温度；iⅱ容器中0~10min内生成0.4mol的pH为9.4，c(OH)=104.6mol·L1,该反应的c(Ga0)=10mol·L-1C,H,(g),CH(g)的均反应速率为2心X10mi0.4 mol衡常数K=c(OH)10-4.6mol·L可=0.02mol.L-1·min-1。=10-0.4②1容器中，反应进行5min后，丙烯的物质的量继(6)根据原子守恒可知发生“失醇缩聚”反应的方程续增多，说明异丙醇的物质的量继续减少，5min时式为一Ga-OC2H,+HO-Ga→异丙醇的物质的量大于15min时异丙醇的物质的-Ga-O-Ga-+C2HOH。量，则5min时正反应速率大于l5min时正反应速(7)将Ga2O无机聚合凝胶置于管式炉中，先通率，l5min时反应达到衡状态，正、逆反应速率相20min氮气后停止通入，改通入氨气，并加热至850等，所以5min时正反应速率大于l5min时的逆反~950℃充分反应20min,再改通N2冷却至室温，应速率。得到纯净的GaN粉末。18.(15分)40总压强不变，随省0增大，商体系(1)+52(2分)分压减小，由于反应I和反应Ⅱ的正反应为气体体(2)正向(1分)高温(1分)积增大的反应，所以衡均向正反应方向移动，异丙(3)①升温(2分)0.02(2分)醇衡转化率增大。②大于(1分)②M点时，设CHO(g)的投料为1mol、Ar的投料(4)①投料比增大，衡体系分压减小，衡向正反为1.5mol,CHO(g)的转化率为60%，CH6(g)的应方向移动，异丙醇的衡转化率增大(2分》选择性为80%，则参与反应I的C3HO(g)的物质0.48×90kPa)X0.6的量为1mol×60%×80%=0.48mol,参与反应Ⅱ②20(2分)3.043.04×90kPa)的CHO(g)的物质的量为1mol×60%-0.48mol0.4×90kPa=0.12mol,容器中CH0(g)的物质的量为3.04(2分)0.4mol、CgH6(g)的物质的量为0.48mol、【解析】(1)焓变=反应物的总键能一生成物的总键C,H:(g)的物质的量为02mol=0.06m0l、2能，C3H3O(g)=CH6(g)+H2O(g)△H1=413H20(g)的物质的量为0.48，mol+0.12mol=×7+348×2+351+463-413×6-348-597-4630.6mol、Ar的物质的量为1.5mol,则气体总物质×2=+52kJ·mol-1。的量为0.4mol+0.48mol+0.06mol+0.6mol+(2)在恒温恒容条件下，向反应器中充入1iol1.5mol=3.04mol,此时水蒸气的体积分数为C3HO(g),若仅发生反应I,则反应I达到衡后，0.6 mol再充人一定量CHO(g),反应正向进行：正反应气3.04 mol×100%≈20%；反应I的压强衡常数体物质的量增多，△S>0,又△H>0,由△G=△H-0.483.04×90kPa)×C3.04×90kPa)T△S
1、山西省2023-2024学年度九年级第一学期阶段性练(三)3道德与法治试题①爱好和是中华民族精神的核心内容材料二；目前，我国直②中华文化具有海纳百川、有容乃大的包容力信息报送的法律法规尚③中华文化积淀着中华民族最深层的精神追求加大了税收征管的难度④延续文化血脉需要发展中国2、陕西省2024-2025学年度第一学期九年级阶段性学效果评估（四）化学试题1、陕西省2024-2025学年度第一学期九年级阶段性学效果评估（四）化学试题1、陕西省2024-2025学年度第一学期九年级阶段性学效果评估（四）语文试题
