已知x的分布函数求常数
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陌陌上的0.62千米实际大概是多远
如图10所示,已知在△ABC中,DE‖BC,CF、CE分别是∠BCE与∠DEC的平分线,点F在AB上,试判定CE与BC的大小关系,请说明理由.错了,应该是试判断CE与DE+BC的大小关系
陌陌上显示的距离米数准吗
一道几何题在边长为2的正方体ABCD-A'B'C'D'中E是BC的中点,F是DD'的中点,1求证CF∥A'DE,2求二面角E-A'D-A的平面角的余弦值
陌陌上的距离是直线距离吗?
长江南零水是什么水我自己查到了,镇江中冷泉,即古长江南零水,在镇江金山公园西面。
长江的水有什么虫
谁知道每年长江的水流入到大海的量有多少立方米?希望说明理由
人人都说长江美~但又有几人能了解他呢~
我明明有30分的财富值,可是在下载文库时要5分,可是我有啊,却提示我财富值不够.这百度是怎么了.
对不起大家了,我的财富值只有5分了
考试急用1.Do you think the skirt looks beautiful __B__me?A.in B.with C.on D.for2.Many people caught cold last month because of the __D__weacher.A.change B.changed C.changing D.changeable3.I was supposed to _A_8:00,but I was late.A.arrive at B.rea
求教几道初三英语单选,麻烦详细说明.1.Look at _____.He is boating happily in the river.A.the photo of Mr.Wang`s B.the photo of Mr.WangC.the photo of Mr.Wang`s2.I like ____.I wish I could have one like that.A.your that beautiful skirtB.t
中国人一直被比喻成什么?
i've been waiting for you for mnore than two hours!Ican hardly wait____.a.a long time b.more time c.any longer d.any more
中国人把黄河比喻成什么
丑陋的中国人把中国人比喻成什么
《最后一分钟》脊梁比喻中国人的什么?
【初中相似几何题一道 已知四边形ABCD∽四边形A'B'C'D',它们的周长分别为90cm,72cm,且AB=20cm,CD=25cm,B'C'=24cm,A'D'=12cm(1)求A'B' BC C'D' DA的长;(2)求S四边形ABCD:S四边形A'B'C'D'
初中几何题,答对追50圆I外一点O向圆O引两条切线OA,OB,在劣弧AB上取一点C,且AC小于BC,连接并延长AC,BC,交OB,OA于D,E,求证,△ACE,△OCI,△BCD的外心共线.
The film ___ for ten minutes when we got to the cinema.A had already been on B had already begun C have alreay been on D have already begun 为什么为A呢?This book is worth ___.A to read it B reading it C reading D to read答案为C为什么类?
初三英语单选 可不可以说详细点说点解析 1.______Whites had_______big dinner last Sunday.A.The,/ B./,a C./,the D.The ,a2----Would you like something to drink?-----Yes,some_______please.A.tea B.bread C.apples D.meat3.Xiaowei looks forwa
初三英语单选,1( )-----It seems that you are very busy with your subject all the time ,Sally.-----I have to .I have a lot of _____ from the societyA.time B.culture C.pressure D.interest2 ( ) -----Please don't step on the grassland.Can't you
一道初三英语单选求解析(D)--How long _____he_____his home?--For about two weeks.A.did;leave B.is,leaving C.has;left D.will,be away from
一题初三英语单选求解析,Great changes in my hometown _____ in the past few years.A.have taken place B were taken place C.had taken place D.have been taken place这题正确答案选择A.我的错解是D.问了同学,他们说因为 have bee
T1+T2+T3+.Tn=n[(n+1)!]证明对于任意正整数成立证明过程
已知数列{Tn},Tn= 3/(2^(n+2)+3/2^n-6),证明T1+T2+T3+···
what did you doing to sleep that time?译英文
射手座的幸运日是?
什么时候是射手座的幸运日?礼拜四
有点差距是什么意思呢?
电视里面说顶你个肺是什么意思?