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take up a challenge这里的take dishes的意思 3/4×（1-2/9）求解答用简便方法怎么算 冠词单句改错after dinner,he gave me the ride to the supermarketdon't worry if you can't come to a party .i will save some cakes for you bus 冠词改错1.Ther is Mr Lee waiting for you at the school gate.2.Cleaning workers in most cities are paid by an hour. (3/4+2/5)*(2/3-2/9) （1/3+1/5）/（2/3+2/5） 用合适的方法计算 冠词的英语改错题Many people agree that knowledge of English is a must in international trade today.哪错?why? cermic dishes是什么意思 英语翻译Aglaé et Matthias就是这个名字. 人教英语必修5文章翻译《rising to a challenge》急急急! 急!请帮我翻译有点难度的定语从句 这个whose 定语从句 怎么翻译.到底是孩子的什么人A child whose sibling parent of grandparent is seriously can be made to feel helpful by being allowed to. 关于定语从句中先行词whose与who的选用问题,He is the poor child whose parents died in the war这句话中的先行词whose可以换成who吗?我觉得可以, 谁给翻一下这段英语in life weall have an unspeakable secret an irreversible regretan unreachable dream and an unfo rgettable love.感觉有错词,regretan.rgettable.unfo谁给翻一下 英语翻译您好,我是XX公司的业务员.现在我们公司正进行Led灯的促销活动.同时,有很多新产品上市. 设a∈R ,若函数y=e^x+ax（x∈R）的极值点小于零,则a的取值范围是? 江苏省南通市2013届高三第二次调研考试生物试题 选择题第九题和解答题第30题第1,2问, breakast with scot 哪位大神可以提供一下,必修二生物导与练答案… BREAKFAST WITH TIFFANY怎么样 Before we dive into the animations,we should look at whether the standard skeleton will provide for our needs.If it will,then we can move straight on to the next step.If it won't then we need to consider if an extra bone would do the trick.It is defi 设f(x)在x处可导,a b 为常数,则lim [f(x+aΔx)-f(x-bΔx)]/ΔxΔx→0的值为_____ （a+b）f'(x)设f(x)在x处可导,f(X0)=0,则lim n·f(X0- 1/n)n→∞的值为____-f'(x0) 已知函数f(x)=(x^2+ax)e^x(x属于R)在x=√2时有极值(1)求f(x)的解析式(2)求y=f(x)单调区间及最小值 已知函数f（x）=（1/3）x^3-ax^2+1,（a属于R）1.若曲线y=f（x）在（1,f（1））处的切线与直线x+y+1=0平行,求a的值2.若a>0,函数y=f（x）在区间（a,[（a^2）-3]）上存在极值,求a的取值范围3.若a>2,求证函 my father ---- the business when he was 30years old.(started,began.) 高一英语单项选择：I don't mind ____ alone,as I'm not good at communicating with others.A.leaving B.not to leavingC.to be leftD.being left答案是A,但是我本人觉得是D啊,还是说mind后面有什么要求吗? my father was playing football ------my mother was going shopping中考题 while when however I am not good at communicating with others .另外如果把这句话中的communicating改为communicate这句话对么? 《家》摘抄点评 原文+点评 五组左右 悬赏分可附加 求《家》中十段心理描写,最好简单点评 解释下列自然现象.1.筷子在水中会“折断“2.流星华过晴朗的夜空.3.雨后出现彩虹! 《西游记》复习资料（填空） 一、作者及评价：《西游记》是 朝著名小说家 .本《西游记》复习资料（填空）一、作者及评价：《西游记》是 朝著名小说家 .本书的一句话评价是：.二、主