努力和运气

若分式2x+2/x^2-1的值为正整数,求整数x的值 分式2x-2除以x^2-1的值为整数,求整数x的值答案不重要,在写等 如图所示,在场强为E的匀强电场中有相距为L的A、B两点,连线AB与电场线的夹角为θ,将一电量为q的正电荷从A点移到B点.若沿直线AB移动该电荷,电场力做的功W1= ；若沿曲线ADB移动该电荷, 并伴随小石子,总重为55g,放入水中恰好学府,当冰全部熔化后,水面下降05cm,若容器的底面积为10平方厘米,已知冰密度为900kg每立方米,水密度1000kg每立方米,求冰体积,石头质量,石头密度 .并伴随 一本名著的200字的读书笔记 好词好句 25篇 Anna's is week birthday next怎么连词成句 求一本名著的的读书笔记 只要一本 要25篇200字的读书笔记 有好词好句体会的 John's birthday dinner is next week.为什么用is?这不是将来时吗,应该用will啊! 一篇读书笔记 要有好词好句还要有感受,主要内容~注意！要有好词好句 next,birthday,is,sister's,dinner,his,week排列成句子 谐音,John's birthday dinner is next week Let'谐音,John's birthday dinner is next week Let's think about the food let's have.strawberry and apple then这些句子 Is Jack birthday next week?答句是什么 英语作文、 on my next birthday要求：以“在我下一个生日那天”为题,写一篇不少于50个单词的短文,内容必须包括下列提示.1.When is your next birthday?2.What are you going to do on that day? Is Mike's birthday on May 15tyh?yes.( ).( )May 15th is Mike's birthday 2x＋3×0.9=24.7 设这本书总共有2X页,3/4*2X-10+7/24*2X=2X 计算出2X=120页的过程求求求 She is going to have a birthday Party next Saturday画线next Saturday提问 已知三角形ABC中,A(1,1)B(m,根号m)C(4,2)(1 We are going to have a party_next weekA.sometime B.some timeC.sometimes D.some times答对送黄钻一年与100Q币 I am going to have a birthday party 台州黄岩的 初中数学书刊有哪些 急.北师大版练习册竞赛难度（不像数学书里的题,但难度不要太高） 英语四级：414听力：129阅读：173综合：40写作：72分析一下, 我英语四级总分520分,听力168,阅读199,综合50,写作96,请问哪方面比较差? 英语四级这样的成绩怎么样听力:181阅读:168综合:37写作:79 Are you going to Tom's birthday party next weekend?( ) I might have to work at that time A It depends B thank you CSounds great D Don' t mention it Are you going to Tom's birthday party next weekend?() I might have to work at that timeA It depends B thank you CSounds great D Don't mention it it's Tom's birthday next Sunday,He____(invite)his best friend Ken to his birthday party 数学公式法应用乘法公式计算1995^2-1994×1996,要详细过程 数学公式法的公式是什么?求回答 长方形木箱的高是8dm,长比宽多5dm,体积是528dm,求这个木箱的长和宽.