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8.D如图所示,设F为BB1的中点,连接AF,FC1,设G为CC1的中D点,连接EG,GB,由EG∥AB且EG=AB,得四边形ABGE是平行“B四边形,则AE∥BG且AE=BG,又BG∥CF且BG=C1F,得AEE∥CF...
2023-11-05 20:34:47
A,二专l,q-anafn-i人四,解答题:本大题共6小题,共0分,解答应写出文字说明、证明过程或演算步骤直817.(10分)已知数列(an}满足a十3a2十…十(2m-1)a,兰n.)求a.的...
2023-11-07 07:14:49
六、(本题满分12分)21.解:(1)2010(2分)补全频数分布直方图如下:………(4分)》人数151210855060708090100成绩/分10【解析】抽取学生的人数为8÷16%=50(名),故m...
2023-11-09 15:30:33
on the Internet in his spare time.He feels hopeful about his future.Questions:11.When did Jin lose his arms?12.How did Jin feel about staying at home?...
2023-11-09 18:43:09
Vac-ABG=S△ABc·h=√3h,.4分则a8-停&语+停)-1,解得看-万,所以柱A-AB,C的高为√/5.…6分(2)当AG=2GF时,EG∥平面BDC.…7分A证明过程如下:因为AG=2GF,且AF为△ABC的中...
2023-11-10 05:12:51
卡合2023年“云教金榜”V+1联考·冲刺测试00千个数学d0克本州骨本试卷共4页,22题。全卷满分150分。考试用时120分钟。t音合注意事项:1答题前,先将自己的姓名、准...
2023-11-10 09:52:57
f(x十2)为奇函数,且满C.任取一个不为零的有理数T,f(x+T)宁f(x)对任意的x∈R恒成立D.不存在三个点A(,f(x1),B(1,/(),C(,f(x3),使得△ABC为等腰直角三角形在每小题...
2023-11-10 18:20:38
第二节(共5小题Before the Renaissance(文艺复兴),art developed veryslowlyforabout1,oo0 years in阅读下面短文,Europe.Most art was made to serve the Chu...
2023-11-11 01:02:57
内部的需求.内需,即内21.(本小题满分12分)面扩大内需,就是要通至盒子理有大小相同,仅颜色不同的乒乓球共10个其中红球2(朱小题满分2班次:资市场,通过信贷等...
2023-11-11 03:22:54
m≥号5-m解得m≥6.4”4分设购买这两种奖品的总费用为w元,则w一20m十15(15一m)=5m十225.…5分:5>0四随m的增大而增大,当m=6时,w取得最小值,最小值为5×6十225=255....
2023-11-23 07:49:01
8如图,已知F,F:是双尚线C景=1的左,右焦点,以F为圆心的图与双曲线左右两支交于P、Q两点,且F,=3F1户则双曲线C的离心率为()贸三A.0R号D.v1052二、多项选择题(...
2023-11-23 08:07:04
第4期高三英语上学期阶段检测(一)参考答案1-5 CBBDC 6-10 ADBAA 11-15 DCDAB16-20 EBDCF21-25DBAAB26-30 CADBC 31-35 BDADC36.walking 37.of 38.rooftops 39.t...
2023-11-23 08:59:05
C.b<c<aD.c<a<b【答案】A【解析】【分析】0,2等中间值区分各个数值的【详解】=e,2<eg5<片b=logo5 0.2>logo.s 0.25=2105<052<05°,放2c<1所以a<c<b故选A.【点睛】...
2023-11-23 11:19:05
可学科网空想卷智联立y=+m得+2k2)2+46m+2m-6=0,x2+2y2=6,由△=16k2m2-4(1+2k2)2m2-6)>0得6k2-m2+3>0,刘%家益1+2k2火+g=+42m=72g房=t5,)+K+5)+m-m-6酸1+2k2代入①式...
2023-11-26 04:57:10
其余内容参考答案A.听句子。第1版时尚阅读(B)1.What does Marywant to learn to use?读有所思说1.Yes,I do.Because dolls are usually very cute./...2.They're...
2023-12-02 10:59:03
50.A.sleeping B.crying C.suffering D.wondering 51.A.set B.cheered C.choked D.warmed 52.A.grow B.change C.pay D.give 53.A.watching B.wandering C.circli...
2023-12-03 00:47:20
(Text 8) M:The carrots taste awful.How do you like them? W:I like them very much.They are delicious. M:Well,you can have all my carrots.I saw you buy...
2023-12-03 12:59:25
第三部分语言知识运用(共两节,满分45分) 第一节 (共20小题;每小题1.5分,满分30分) 阅读下面短文,从短文后各题所给的A、B、C和D四个选项 中,选出可以填入...
2023-12-03 14:47:21
52.A.lead B.agree C.devote D.contribute 53.A.heights B.positions C.grades D.spirits 54.A.cars B.bikes C.textbooks D.schools 55.A.Frankly B.Eventually...
2023-12-03 15:57:22
conscience.And if he'd had to spell aerospace or conical,he'd be out already.His sister's advice suddenly made sense. 注意: 1.续写词数应为150左右; 2...
2023-12-03 17:06:57
【答案与解析】 人都会变老,这是自然规律。本文叙述了人的衰老过程、原因 及具体表现。 41.B 现在的人比以前更长寿了。 42.B 所有的生物都会显示出衰老的影响并...
2023-12-04 00:07:02
increased awareness of the costs of child-raising,or to a shift in preferences from child quantity to quality. 21.What can be known about the paternit...
2023-12-04 09:41:03
(Text 7) W:Are you interested in mountaineering? M:Yes,in some sense,I should say I like mountain climbing, you know,because I'm not so professional.H...
2023-12-04 16:21:26
B.Work as a programmer. C.Travel around the world. 听第7段材料,回答第8至10题。 8.What will the man do in Chicago? A.Take a course. B.Fix his car. C.S...
2023-12-04 17:51:03
【命题视角】本题考查考生把文章内容与常识结合起来作出准 确推理的能力。 【解题思路】本文讲述的是某些地区的鱼所面临的困境和人们 对此现象的所做所想,属于...
2023-12-04 18:41:20
went missing after she dug a hole under the fence. Paragraph 2: What was most fascinating about the reunion is that Shavi also moves others.
2023-12-04 22:11:00
W:I've been there before.It's a big tourist place so there is ac- cess to everything. M:Really?That's good. W:How long will you stay? M:I am leaving o...
2023-12-05 00:01:26
20.What does the speaker inspire students to do? A.Work hard. B.Be nice to others. C.Respect the elders.
2023-12-05 01:41:19
3.What is Lucia doing? A.Cleaning the house. B.Doing her homework. C.Watching TV. 4.What attracts the woman to the restaurant? A.The soup. B.The free...
2023-12-05 05:11:02
The email address:myenglishclub cedu.com.Waiting for your participation. Thank you.
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