瓦楞纸结构

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数学不等式大小未知数比较a,b,c三个正实数,且a^2 +b^2 =c^2 ,当n属于N,n >2时比较c^n 和 b^n +a^n 的大小不要代数啊,最好仔细点拉,呵呵 【数学】怎样从解集看分别不等式的未知数大小例如我们已知不等式组{X>a{x>或=b 的解集是x>或=b,则a与b的大小关系是 数学不等式中那个看成未知数,那个看成参数? 数学 不等式比较大小..谢谢 一道很简单的英语辨析题请求详解how与what的区别为什么用how to deal with ?它与what to do with 的区别我一时之间忘记了,请求帮助,先谢了! 回答满意者,重赏!!! Please try to give a proper title to the passage.求此句话的意思. 1--I seldom watch TV ,but I listen to the radio a lot---___________.A.So do I B.Neither do I C.The same to me D.So it is with me2Recently I bought an ancient Chinese vase,______________was very reassonable.Awhich price B,the price of which C.its pric 1.Which would be the best title for this passage?选择前面有短文,一共4道,在2010年的寒假生活指导第21页希望大家多帮我2010年8年级寒假生活指导 2道英语单选请求解析.【1】We must strick to____we have agreed on.A、whatB、thatC、/D、how关键不在答案.我只是疑惑这句话的意思是“我们要为了被认可而奋斗”吗?如果是,为什么B不行?而且为什么题目 根据首字母补充句子.Please give a t_____ for this passage. 如图,某长方形广场四角铺上四分之一圆形的草地,若长方形的长为a米,宽为b米,圆形的半径为宽的三分之一,用代数式表示空白部分的面积.再求当a=12,b=9,π取3.14时,空白部分的面积? 如图,某长方形广场的长为a,宽为b,它们的中间是半径为r的圆形草地,四角也都是半径为r的扇形草地,则用代数式表示广场空地的面积是( )【要过程】 某长方形广场为a米,宽为b米,中间有一个圆形花坛,半径为C米.1)用整式表示图中阴影部分的面积;2)若长方形的长a为100米,宽为50米,图形半径C为10m,求阴影部分的面积(兀取3.14) 英语翻译they were underwater,meaning with a mortgage larger than the value of the house.怎么翻译?There are over 80 million single family homes in America,and it's estimated that in 2011,18 million of these were underwater,meaning with a mortg they have a butterfly house with over 200 linds of butterflies!上着课呢 急用啊这句话里的 with 、over 翻译为汉语:if you have a house full of children and rubbish,you will never kepp it clean. 奥数流水行船 例题船在静水中的速度是每小时25千米,河流速为每小时5千米,一只船往返甲、乙两港共花了九小时,两港相距多少千米? 元宵节的习俗有哪些?越多越好,最好有段落写作文可以借鉴. 请问proteus仿真软件中的滑动变阻器怎么仿真的啊?(怎么改变阻值)仿真时那个箭头不能滑动的. Wear trousers in their house翻译这个句子:MR.wilson talks a lot but mrs.wilson wears trouserous in their house you needn't wear hats in the house同义句 you____ _____ _____wear hats in the house急 Cape May Court House是什么 SAFE HOUSE COURT怎么样 I was not born yesterday 我们知道因式分解与整式乘法是互逆的关系,那么逆用乘法公式(x+a)(x+b)=x²+(a+b)x+ab,即x²+(a+b)x+ab=(x+a)(x+b)是否可以分解因式呢?当然可以,而且也很简单.如:(1)x²+4x+ was,yesterday,evening,care,baby,the,good,of,taken 连词成句 (ab+a)+(b+1)因式分解 (3^1+1)(3^2+1)(3^4+1)(3^8+1)(3^16+1)=?用乘法公式 (a+b)^2+2(a+b)+1+?因式分(ab+a)+(b+1)因式分解 (3^1+1)(3^2+1)(3^4+1)(3^8+1)(3^16+1)=?用乘法公式 (a+b)^2+2(a+b)+1=?因式分 若多项式a^2+(k-1)ab+9b^2能运用乘法公式进行因式分解,则K=_____RT This is a copy of catalog.It will give a good idea of the products we handle.大侠们帮忙翻译下 20.This picture will _____ to you some idea of the beauty of the country.A.convey B.spread C.e20.This picture will _____ to you some idea of the beauty of the country.A.convey B.spread C.express D.survey 一个圆柱如果将它的底面平均分成若干个扇形,截开拼成和它等底的长方体表面积增加12dm的平方如果截成两个小圆柱表面积增加了3.14dm的平方,求原圆柱的表面积 英语翻译I wanna take you homeTo my placeShare my dreams and my fantasiesI can't waitI wanna show u thingsYou ain't never seen beforeGirl I hear you cryingCrying out for moreTalk to me,talk to meAm I doing this right?Talk to me,talk to meAre u fee