1、金太阳2024-2025年度上学期河南省高一年级选科考(25-110A)数学答案1、明思教育·河北省2024-2025学年度第一学期七年级教学质量检测二地理试题1、河南省2024-2025学年第一学期八年级学情分析二数学答案2、陕西省2025届九年级教学质量监测10月(☆)化学试题1、陕西省2025届九年级教学质量监测10月(☆)物理试题1、[陕西二模]2024年陕西省高三教学质量检测试题(二)2答案(物理)1、陕西3、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试题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试题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
A.原子半径:Z>Y>XALNaOHAGHNSHHCIKALB金属单质M,△下列叙述错误的是C.B为FeSD.E→F属于化合反应NHCI湿润红色石蕊试纸a消石灰湿润红色石蕊试纸b浓硫酸甲基橙溶液IIIIIV下列叙述正确的是A.装置I中,反应的化学方程式为2NH4CI+Ca(OH)CaCl+2H20+2NH↑B.装置Ⅱ中,试纸b先变色,试纸a后变色C.装置Ⅲ中,因产生了铵盐而产生“白烟”D.装置IV中,甲基橙溶液变为红色13.DissectolA(乙)是从几种开花植物中分离出来的重排烯苷。一种制备乙的过程如图所示(部分物质未标出)。下列叙述正确的是Pd(PPh)HO~DBUHOCTHFHOOHOHHOOHOH0-0-2甲0页第4页(共8页)化学试题
1、河北省秦皇岛市某校2024-2025学年第一学期期中演练九年级数学试题1、明思教育·2024-2025学年度第一学期教学质量检测二物理答案1、明思·安徽省2024-2025学年第一学期七年级教学质量检测一历史试题
1、明思教育·河北省2024-2025学年度第一学期七年级教学质量检测二地理试题1、河北省2024-2025学年第一学期九年级教学质量检测二化学试题1、明思教育·2024-2025学年度第一学期教学质量检测二语文答案12、河南省2024-2025学年第一学期八年级学情分析二语文试题1、河南省2024-2025学年度第一学期八年级第一次学情分析数学(北师大)试题四、(本大题共2小题,每小题8分,满分16分)17.如图,王老师为测量学校操场上小树CD的高3、河北省2024-2025学年第一学期九年级教学质量检测二英语试题1、河南省2024-2025学年第一学期九年级教学质量检测二数学答案1、河南省2024-2025学年第一学期九年级学情分析二政治答案1、河4、[益卷]2024-2025学年度第一学期九年级课后综合作业(二)政治试题1、陕西省2024届九年级教学质量检测政治答案1、陕西省汉中市2024届高三年级教学质量第一次检测考试(12月)地理答案1、陕西省20235、河北省秦皇岛市某校2024-2025学年第一学期期中演练九年级语文试题1、河北省秦皇岛市某校2024-2025学年第一学期期中演练九年级语文试题1、河北省秦皇岛市某校2024-2025学年第一学期期中演练九年级政治试题
1、明思教育·河北省2024-2025学年度第一学期七年级教学质量检测二语文试题1、河北省2024-2025学年第一学期九年级教学质量检测二语文答案1、河北省2024-2025学年第一学期九年级教学质量检测二化学试题12、文博•河南省2025-2026学年第一学期学情分析试卷(9月)八年级生物(北师大)答案1、河南省2024-2025学年第一学期八年级学情分析二语文答案1、河南省2024-2025学年第一学期八年级学情分析二数学答案1、河南省3、明思教育·2024-2025学年度第一学期教学质量检测二语文答案1、明思·安徽省2024-2025学年第一学期七年级教学质量检测一地理试题1、安徽省涡阳县2023-2024年度八年级第一学期义务教育教学质量检测语文答案
1、定边四中2024~2025学年第一学期高二期中考试[25-T-260B]地理试题1、黑龙江省大庆市第四中学2018-2019高一下学期历史期中考试试卷考试试卷绝密★考试结束前2022学年第一学期台州山海协作体期中联考高一年级历史学科试题考生须知:1.本2、明思教育·河北省2024-2025学年度第一学期七年级教学质量检测二政治答案1、河北省2024-2025学年第一学期九年级教学质量检测二英语答案1、河南省2024-2025学年第一学期九年级教学质量检测二数学答案13、陕西省2024-2025学年度第一学期九年级阶段性学效果评估(四)物理试题1、陕西省2024-2025学年度第一学期九年级第一次阶段性作业文数答案1、陕西省2024届九年级教学质量检测政治答案1、陕西省汉中市204、河北省秦皇岛市某校2024-2025学年第一学期期中演练九年级语文试题1、河北省秦皇岛市某校2024-2025学年第一学期期中演练九年级语文试题1、河北省秦皇岛市某校2024-2025学年第一学期期中演练九年级政治试题
故T+)-T=2+2(n-1)=2n.T-T-#=2(n-1),···,T-T=2,得(4k²+3)x+8kmx+4m一12=0,(11分)(3分)4km当#≥2时,果加可得T.=1+2×1+2×2+·+3mt放一,故y=kx十m4元十33x0工O4k=#n+1(5分)(13分)4yo2yo经验证,当n=1时满足上式,放T.=n一n+1.3x0代人切线方程中得y。4yoR(6分)XI(X3x+4y3(15分)(2)由(1)知,当n≥2时.aT4yoyaTa-1易得B(O,),C(0),因此△OBC的面积为8m2-n+1n--n+1(8分)6(16分)n"-n+1经验证,当n=1时满足上式,即a,=工oyon2-3n+3yaxayoyo####(9分)#又1=A3.√32(n-1)(17分)(3)由(2)可知,当n≥2时,a,=1+n2-3n+3Joyo219.解:(1)证明:易知f(x)的定义城为x>0或1+(11分)1,且≠1设函数f(x)=π(工>1),易得f(x)在(1,(1分)###单2a6.04f((-1-x)+f(x)=la(=+o0)上单调递增,则n≥2时.n一1+1-2x1n(+1)-2a(13分)的增大而增大,a。随n的增大而减小,也即(a)中的最大项为第1项或第2项又2一8故曲线y=f(x)关于点(一,0)中心对称(15分)1,a=3,故(a。)中的最大项为3.#是#共#(4分)(2分)2a√4=2,2x+1E(0,(4分)故E的标准方程为143(2)设点A(xoy。),则|AD|=x。一十2a(L-1)Int-因此只需求出在t∈(1.+)上11+ya(6分)(6分)y=x216##民(令g(x)=(x+1)1nx-2ax+2a,xe(1,+00),11x,得|AD|²=-代人y3=34从而g(x)=lnx+—1)²4549(8分)+16*164令m(x)=U3√5故当工。=1时.|AD丨取得最小值0,解得x=1,故p(z)在x=1处取到最小值,g'(1)=2-2a(7分)(3)证明设切线的方程为夕=十m,联①若a≤1,则p(x)>0进而p(x)在(1,+00)3x²+4y²-12=0,上单调递增,g(z)>g(1)=0,因此g(x)>0故立68分)1)-(2+1)1ni-2>0,f(x)>0H.0(+(0##.0-(12分)②若a>1,则g(1)
18.(本题满分17分)1(a>6>0)的焦距为2,以椭圆G的四个顶点为顶点的四边形面已知椭圆G:积为4√3.(1)求椭圆G的方程;BN交于点P.(i)求证点P在定直线上;十一的最大值(i)设AP=tAM,BP=tBN,求t2C=/a=2y+只中#个四的出台#小##代#共,强小#酸小8共限本:面#,一#的要自19.(本题满分17分)在几何学中,我们常用曲率来刻画曲线的弯曲程度.设光滑连续曲线C:y=f(x),定义k=1f"(x)1为曲线C在点P(x,f(x))处的曲率,其中f'(x)为f(x)的导函数,f(x)为[1+(f(x))²]f(x)的导函数.已知曲线C:f(x)=3-2a2lnx24(1)当a=2时,求曲线C在点P(1,f(1))处的曲率;(2)已知曲线C在不同的两点A(x,f(x)),B(x,f(x2))处的曲率均为0.2X(i)求实数a的取值范围;·+(ii)求证:x+x24a+23.8SSSZ6【高三年级联合调研考试·数学第4页(共4页)】
A.Express intense excitement.B.Display minimal emotional engagement.C. Call the story's realness into question.D.Ask follow-up questions about specific details.34.What is Roshanaei's attitude toward current AI technology?A.Critical.B.Optimistic.D.UnconcernedC.Objective.35.What's the best title for the text?A.Emotional AI Begins to Catch onB.AI Chatbots Struggle with EmpathyCHow AI Chatbots Reform HealthcareD.Why AI Chatbots Surpass Humans in Empathy第二节(共5小题;每小题2.5分,满分12.5分)选项。increasingly important to many people.Here are some practical steps you can take.Replace old equipmentOlder equipment tends to consume more energy than newer models. Any equipment willget older.during a remodel, may provide extra space since their sizes are getting smaller and smaller.Fix energy-efficient windowsoA bsdoainHowever, if you have single-pane (单层玻璃)windows or if there are noticeable38signs bfdamage, fixing energy-efficient windows can save you money in the long run. Themost energy-efficient windows feature double or more panes of glass with inert (情性的) gasbetween the panes.9About half of a home's total energy usage goes toward heating and cooling. Fixing asmart thermostat can help you adjust the times you have your heating or cooling runningaccording to a pre set schedule, which can help you cut energy bills. According to a study,asmart thermostat can reduce your heating and cooling bills by up to 8%.Switch to solar energygreenhouse gases,helping homeowners save on the costs of water and electricity. You can fix40 .This is a great way to benefit both yourself and the environment.with your homeA Consider smart home climate controlR Reduce household energy consumptionC.Replacing windows can be quite expensive【高二英语第7页(共10页】
A. The widespread damage to forests.35.C.The ban on nature-related products.31. What did Fran Price want to convey?才A. Forest conservation is a priority.英C. Forest destruction is just regional.育D第智余of Cambridge and Johns Hopkins University.yoop线merely the brain being trained to use already existing but possible abilities.1S题P-instead it's using possible capacities that have been present since birth.areas-订要survivors ever developed a novel functional ability that did not otherwise exist.不装of the brain's remarkable but limited内tracks in this journey. The idea of quickly unlocking hidden brain potentials or tapping itovast unused reserves is more wishful thinking than reality. It's a slow, gradual joumeydemanding persistent effort and practice. PRecognising this helps us appreciate the hard work线behind every story of recovery and adapt our strategies accordingly.封"So many times, the brain's ability to rewire itself has been described as *miraculous封but we're scientists, we don't believe in magic.These amazing behaviours that we see arethey said.resources,32. What is a common misunderstanding of the brain's function?A. The brain can be trained.密B. The brain can compensate blindness.C.The brain can rewire itself.D. The brain can react to sudden diseases.mmn wollol otem ol bnaia33. Why are the related studies mentioned in the text?师A. To tell the limits of brain plasticity.B.To analyze the structure of the brain.名C. To find productive research methods.聚D.To explore the new functions of the brain.bsyst8asmtadO tsd1 to yom#34. What is paragraph 5 mainly about?荟A.The realistic expectations for patients.B. Supporting evidence for the research results.C.Further explanations of the medical strategies.D.The medical significance of the new finding.冲刺卷英语(一)第5页(共8页)








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