2024届金学导航答案网

16已知精圆心号-1(>6>0).点A,:分网为情圆C的左右顶点，点P为州阴心的右焦点，P为椭圆上一点，且PF垂直于x轴过原点O作直线以的垂线，垂足为M,过原点O作直线PB的垂...

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方法2：C-C-C=30.18.(本小题满分为12分)解：(I)令x=】可得，展开式中各项系数之和为(~)”，…2分而展开式中的二项式系数之和为2”，….4分.2"×(-1)”=256,.n=8.6分()...

吕梁市2022-2023学年第二学期期末调研测试高二数学试题2023.7,八本试题满分150分，考试时间120分钟。答案一律写在答题卡上。注意事项：1.答题前，考生务必先将自...

第八章平面解析几何4.(2022全国乙文，6,5分)设F为抛物线C:y2=:5.过抛物线y2=4x的焦点的直线l交抛物线于4x的焦点，点A在C上，点B(3,0),若1AF1=P(x1,y1),Q(x2,y2)...

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1令b=1,则a=c=-1,即n=……9分3√3平面ADD1的法向量可取为m=(1,0,0),……10分1则1cos(n,m)川=n·m可n·m3√355155…11分+1+13√3庙图知二面角M=AD,-D为锐二面角，放二面角M-...

8350.0k1sHD HD78高三英后（答案）φd时文件预览2023年4月玉林市高三年级教学质量检测英语参考答案听力部分1-5 BAABA6-10 BABBC11-15 ABCBB16-20 BCCBA阅读理解21...

写作第二节参考范文：Dear Mike,I'm writing to tell you that there will be a model aircraft competition held by our schoolnext Friday.Knowing you're an...

在三角形0C,中，0C=√12+2-2X1×2Xc0s牙=7，同理得，B1C=√I0,BC1=√6，所以三棱柱ABC-A1B,C1的侧面积为/0×√6+2×2sin号=2√5+2W3.四、解答题：本题共6小题，共70分，...

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此时同(2)，即l:2x一y十1=0.…12分方法2设圆心到直线AB的距离为d,则|AB引=2√16-平(0<d≤√5)，…9分∴Sw=号1ABd=V16-d·d=d+I67=√=(d-8+6,…10分当=5时有最大值，此时同...

speakers,is becoming more and more popular indidn't matter because you couldn't hold thatChina.phone up for that long!”可知，电池续航时间1-5 BABAB 6-1...

fish,vegetables and fruit.They can help us keep fit参考答案(One possible version客观题除外)听力部分I.1-5 BACBCIⅡ.6-10 CABCAIⅡ.1l.bread and milk12.does...

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AInc.comIcons InnovatorsPowerful books Elon Musk recommendsElon Musk's must-read list exhibits his well-known and deep interest in science,as well as...

me this Sunday.Children's Day is coming.I plan to buy my sister a Hanfu costume as a present.Knowingthat you're fond of traditional Chinese costumes,I...

学金国000行名校高三单元测试示范。札记全国0©0所名校高三单元洲试示范表A.Unexpected technological challengesB The failure to implant nanoparticles.E.Plus...

短文改错：When I was a little girl,my career goal is to become a medical practitioner.Now I grow up,I realize that Iwaswant be a college professor.The...

不我在哪儿能买In16Zhu44 to his hometown in Shandong.He uderstood the importance ofducation,o he set up evening s He taught the villagersread and write...

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【答案与解析 8.A细节题。根据第1段第1句可知，作者想告诉我们人工智能 的新用途 9.C细节题。根据第2段最后1句可知，尽管技术提供了越来越 强大的手段来识别诸如...

D.Having an interest in sports activities.

June 12th?That's after the trade exhibition.. M:I think something will be happening on that day,Rebecca. W:Oh,yes.You're right.The people from Head Of...

22.What is How It Feels to Float mainly about? A.A girl's space adventures. B.Challenges of growing up. C.The murder of a teenage girl. D.A poor girl...