2026衡水金卷周测卷答案网

2023届九年级第二次质量检测数学试卷命题学校：临川二中命题人：任晶审题人：黎良麟一、选择题（本大题共6小题，每小题3分，共18分）1.-2023的倒数是（).11A.B.C...

习全国O0所名校单元测试示范卷教学札记C.x(x+1)sD.(3+3x)5解析：(r-是)5的展开式的通项为CG(2)r(-号r=(-2)rCx0,re0,12,3.4,5}.令10-51=0，2,故(2-是)5的展开式中...

又an>0,则Sn<Sn1,且S,<2023<So,.11分所以n的最小值为10.….12分解法二：(1)由a2n>0,且a2na2m+2=16,则10g2(a2n42m+2）)=l0g216m1，..2分得10g2a2n+l0g2a2n+2=4a2m+...

考3.北京时间2022年11月29日23时08分数10分，中国航天人再次刷新飞天壮举.航天员费俊龙、邓清明、张陆组成神舟十五号飞行乘组，接力空间站建造阶段载人飞6行任务...

(Text 6)W:Are you going to attend the meeting at two?M:No,I can't.W:No?Why?It'll begin soon.M:I have an important report to write.And it has to be han...

13:10|0.1K/s⊙o56Ho49ll☑0〈数学试卷.pdf摄影m%/书法25%丘球影书法球尼球项目(1)求m,n的值并把条形统计图补充完整：(2)若该校有2000名学生，试估计该校参加“书法...

.∠EBC=∠EBA=60°、'.△BED是等边三角形由折叠可知∠FEG=∠A=∠DEC=∠C=30°，.∠BEF=G0°，.△BEF是等边三角形，.BF=EF=ED=BD、图2.四边形BFED是菱形…9分2.解1器-5.2分(2)C...

18如图，已知平行四边形ABCD的对角线AC,BD相交于点O,MN过点O且与AB,CD分别相交于点M,N.(1)求证：OM=ON;C2》若∠BMN=90BM=15,BD=34,求MN的长.五、（本大题共2小题...

高三一轮复习·数学·高三一轮复习周测卷/数学（七）一、选择题最小值，所以最小值为4=22.故选C1.B【解析】因为limf(2-△x)-f(2+△x)√2△*△x7.A【解析】设P(x1,y),函...

2023~2024学年怀仁一中高三年级摸底考试·数学参考答案、提示及评分细则1.D由之=(2+i)(1十)=(2十i)(1-i)=3-i,可得=3十i,所以它的共轭复数乏的虚部为1.故选D.2.C由...

10:4810.8K/s2⊙D5 D414t444As for me,books are of great significance to relax.One day,after passing an exam,astrong feeling of tiredness rose from the b...

-

则s=2(os0+2ams20)=294ws04os0-2小00》令S=0,则4cos26+6080-2=0,解得cos0=-V3图-（合）或c0s0=V5-」88设9为cos0=5压-l所对应的角，6:y=cos9在0e0写上单调递减，∴...

opirsighsca又sinA≠0，所以sin(A-B)=sinB+sinC,3分则n Acos B=c0 s Asin B-sin B十snA8B十cos Asin B,to4分则-2 cos Asin B=sinB.,,”4…◆2g因为sinB≠0，所以-2cos...

-

6.如图，在圆锥SO中，AB是底面圆O的直径，SO=AB=4,AC=BC,D为SO的中点，N为AD的中点，则点N到平面SBC的距离为A号C.1D.2B-V7.如图，在三棱柱ABC一A1B1C1中，M为A1C...

即可求实数a的取值：(2)由(1)的结果可知，xn+1>1,neN,并设g(x)=f(x)-x=二+lnx-x,x≥1，利用导数判断函数的单调性，根据g(x+2)>g(xn+1),即可证明.【小问1详解】=是...

扶余市第一中学高三年级第三次月考试题·数学参考答案、提示及评分细则1.C由V2x+3>0可得B=(-,十∞)，所以AnB=(1,3.故选C2.D存在量词命题的否定是全称量词命题，所...

-

可学科网空组卷船.2023一2024学年辽宁省县级重点高中协作体高二期中考试数学参考答案及评分意见1.D【解析】因为直线1与直线x-2y+3=0平行，所以直线1的斜幸为)又...

W:Don't worry.I will help you.10.M:Jack got a low mark in the Chinese exam last time.What about this time?W:He got the highest mark第二部分听对话和短...

选：ABC.12.解：x∈[0,3]都有f(6-x)+f(x)=0,∴.f(x)关于(3,0)对称，令x=3,则f(3)+f(3)=0,即f(3)=0.:在[0，+o)的函数f(x)满足f(x+6)=f(x),∴f(x)的周期为6，作出函数...

第8期Bl版Keys:(One possible version客观题除外)阅读训练营1-5 BDABB非常解读1-5 AECBD完形小测1.more convenient2.project3.accept4.listed5.to create6.Altho...

1.can't wait to open their presents2.couldn't wait to tell it to my parents over the phoneIL.1.I think that there is nothing like jogging as a means o...

painting is also one of the most popular of Van Gogh's works.This painting shows the starscene representing human spirit.听一篇短文，回答第16-20小题。...

37 In fact,it sometimes does us more harm than good because often looking out for the "greener grass"will exhaust our energy and attention and finally...

practice new skills. According to the statistics,more than 60%of American youth have participated in different kinds of community service, such as coo...

7.What does the woman advise the man to do? A.Go on a walk tour. B.Visit Paris with his family. C.Spend more time with his family. 听第7段材料，回答第...

ability to flexibly apply this knowledge in new situations.From this perspective,the term "common sense"seems to capture ex- actly what current AI can...

building,which once served as the base for the Suffolk Times newspaper.These days,this well-designed shop sells vinyl re- cords(黑胶唱片)and loads of...