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已知x=(1-y)/(1+y),用含x的代数式表示y,y= 用含x的代数式表示y第一题3x-2y=4 第二题5x-y=5 棠棣 象征着什么? 棠棣花的有关知识,性状；有关故事传说；紧密相关联的事物等 棠棣阅读网 这网怎么样 第一次...600字左右,最好是第一次走夜路,开头结尾好就行,好的给50,友友们~@@!#今天就要,作业写不完了. -5/3的倒数的绝对值是( ) He looked over at me and gave me a small smile.这个句子中look over at me 是什么意思 一个高中复合函数的问题f（x）=2x-1,那f（x的平方）等于多少为什么？ 六年级的作文第一次 1. Look _______ the mirror, you're so beautiful.1. Look _______ the mirror, you’re so beautiful.2. Please stay ________ me, my friend.3. The dog drives the cat ________ .4. I want ______swim ______ the pond.5. The man feeds the CAD2010 标注中的文字高度为什么不能改了?文字高度显示灰色不能修改.求原因. 极限的证明问题.当x趋向3,3x－1的极限为8,用定义证明很简单,那怎么用定义证明极限不是9而是8呢?就变成了3（x－10╱3）＜3（x－3）＜ε,取δ=ε╱3,不也可以证明极限为9是正确的吗?过程上有哪 什么叫做为人师表,为什么要为人师 如何为人师表 怎样为人师表 求救!英语语法题!The British are not so familiar with d求救!英语语法题!The British are not so familiar with different cultures and other ways of doing things,____ is often the case in other countries.A.what B.as C.so D.that 答案是B老 Your account has been successfully registered!You can now login with your user information. 1.The British are not so familiar with different cultures and other ways of doing things,_____ is often the case in other countries.A.as B.what C.so D.that2.______ is known to the world,Mark Twain was a great American writer.A.That B.Which C.As D.It3 单选The British are not so familiar with different cultres and otherr ways of doing things.__ isoften the case in other countries.A.That B.So C.What D.Which 为什么不选C?并翻译句子. The British are not so familiar with different cultures and other ways of doing things.______is often the case in other countries.A That B So C What D WhichWHY? The british are not so familiar with different cultures and other ways of dong things,(as) is often the case with people in other countries.答案是as,可我总觉得是so.请高手指教下 计算：1+根号2+根号3/1-根号2+根号3说明式子上下怎么转。是不能被采纳的 For your protection,your account has been temporarily disabled.Please try again later. kong jian hao ci,merry christmas 我登入instagram时,他出现错误your account has been disabled for violating our terms.you can learn more in the help center. 《论语》和《大科波菲尔》的读后感各一篇2000字 水平不要太高 只是借鉴 compare him with the other 的意思是把他与其他人相比,为什么other 前要加the?为什么啊,..应该是others吧。 翻译：How can you compare with him? 电导率和水的纯净度有什么样的关系?电导率能表示水的纯净度 不知是这样么?如果是那之间有什么关系 水的纯度可以用电导表示吗 Your account has been credited.