两个三次多项式相加

sweep的现在进行时 英语wash-washing和ciean-cieaning和sweep-sweeping的意思是啥 I can't help you__the house this afternoom.A,sweeping'B,sweep;C.swept,Dwith sweep Why( )he have a talk with her?( )he do it tomorrow?填情态动词 I have never seen her,let it alone to talk with her.我从未见过她,更不用说和她说话了.这句话英语这么说对不?尤其是后半句!那用英语怎么翻译这句话啊？要用上let alone这个词组 关于雅思作文怎么写雅思大作文第一段到底用不用写自己的观点 还有哪类作文适合从一方面或两方面写 以及大作文的段式 你写的作文是什么意思I am a student from Hope Middle School.Now I will introduce my campus life brie at Please home rest and seay 排成一个句子 I am an outgoing girl called xxx who is from No.1 middle school.这句话有没有错? Please sit down and has a rest for a while.这句话对吗 那位高手能帮我批改一下雅思作文,这是本人的处女作,毛病可能很多,希望有高手能帮帮小弟彻底修改一下!给个分数,最好能提一点实质性意见,topic:some people think music is just a form of entertainment wh 一篇雅思作文,小弟才疏学浅,希望能给出一个具体能得几分,能给一些建议更是感激不尽.2.Some people think immigrants shoul accept the new culture as their own.Others believe that they should keep their own culture.Discuss 连词成句并译成中文 dangei,sign,mean,second,does,the(?) the,cage,is,tiger's,on,the,interesting,sign(.)连词成句 Ban-i-ZOO-ski这个发音为什么不吉利?（英语）Ban-i-ZOO-ski这个发音为什么不吉利?这个是读音，这个是那个读音的来源，Baniszewski它应该读成Ban-i-SHEF-ski，但文章里面提到Ban-i-ZOO-ski的发音带有不详 （高一英语）get rest 和 get some rest能直接用get rest吗?这两个短语有什么区别吗? I must go to the grour's to get some groceries 是什么语法,里面的to有什么用,是什么含意 有语法专家吗.get stuck请用语法解释一下.还有,as many ways as possible,的词 性,且造个句子. A question about a sentenceA sentence says "So far we haven't drawn any conclusion on this matter".What if a "s" is added to "conclusion" to be "conclusions"?Or is there a little mistake in that sentence? A question about the sentence in Pride And Prejudice."[[I certainly have had my share of beauty]],but i don't pretend to be anything extraodinary now."I will be thankful if you can explain the grammar to me. the Compound Sentence 并列句 这里的compound是复合的,的意思啊,为什么不叫复合句啊?the Complex Sentence 复合句 mittens,ski,snow,sing,because的读音一样吗 The Good Old Days 歌词 reminisce about the good old days The good old days l met you 英语翻译 About the political question of the USAThe Harvard University is under the political influence of American Federation?What's the political influence?(NUB)Is it direct or indirect?知道问题内容的请回答 The purpose of_________is to deal with traffic pressure中的to deal with 做什么成分这个句子的句型结构是什么,空上填什么 I can sing and dance .(改为否定句） I ____sing___dance. in the old days how did people travel in the old days? question about math（1-3x)(1+3x)-(3x+2)^2,其中x=-1/3,please,thank you very much.2 若3^x=a,3^y=b,则3^2x-y等于——？（用含a,b的代数式表示）