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收到压岁钱后 作文明天交 怎样合理运用压岁钱的作文 they 后的动词要不要加S They were finished finish是动词,为什么还要加be动词? taste sound smell seem feel get turn become这些单词什么情况下当系动词?速告诉, 用系动词become造句如题 谁知道爱的教育有几页啊 关于should wouldOf course,nobody ever thought the prime minister's job shall be easy.A.would B.could C.will D should答案是选择A,我选择D有什么不对呢? 古文观止是谁写的 体罚比爱的教育更有效 （例子、格言）辩论赛反方, 对个对联,上联泛舟赤壁,耳的清风,目欲明月,何羡长江?下联是? 写出下面数列的前5项：a1=1,a2=2,an+2=2an+1+an要有过程,谢谢~ 写出下面数列的前5项 a1=-1 a2=-2 ,an+2=1/an+1 + 1/an 爱的教育又名是什么 英语翻译It all began when they took me from my homeAnd put me on Death Row,a crime for which I am totally innocent,you know.I began to warm and chillTo objects and their fields,A ragged cup,a twisted mopThe face of Jesus in my soupThose sinister 清风（ ）（ ） 明月一池水 铺纸（）云烟 挥笔（）风雨 （）海（）河（）浦江 挥笔（ )风雨对铺纸（ ）云烟?白沙白水白洋淀对什么 数列｛an｝满足a1=1,a2=3,an+2-4an+1+4an=0数列满足A1=1,A2=3.并且An+2-4An+1+4An=0.1、证明{An+1-2An}是等比数列 I have so many t__ to do every dang 首字母填空答案 求Mercy Mercy Me-Craig David歌词翻译 已知数列an中,a1=-1,an+1乘以an=an+1-an则数列通项an=?标答是：-1/n? 为什么过程不可以是：an+1(1-an)=an,an+1=an/1-an,an+1-an=-1?所以an=-1-n+1=-n?麻烦解释下 已知数列an满足a1=4,an=n+1/n-1乘以an-1则an= 数列an中,a1=1/2,an=(n-1)/(n+1)乘以an-1,求an的通项. 数列a1=1,an=2an-1+1（n≥2,n属于N^*）的第5项是? could i use your pen ? A.yes ,you can B.yes,sure C.no,you can't 求描写人物色彩的片断或诗句.快,2天内. 用词语写段落用枝繁叶茂 青山碧岭 茂密 树丛搭窝筑巢 阵阵松涛 碧波 荡漾来组段 梁山好汉表现义的故事要两个,概括一下武松打虎的故事情节关于武松还有什么故事,一个就可以了 a1=2,a(n+1)=2an,写出数列前5项,猜想an并证明a1=2a2=4a3=8a4=16a5=32如何证明?an=2的n次方 我要武松打虎的故事简介,字数不低于150字,不高于300字.字数不要过多. ——Can it be our English teacher?——Let me see.I'm not sure.it____ beA.must B.can C.might D.will 请帮我用英语复述这篇文章!teenagers who listen to the save music often have a common look.one hot style in music and fashion is hip-hop.simply put,hip-hop fashions are loose-fitting street clothes.the style includes baggy pants,sweatshirts