描写客厅奢华的句子

数列{an}中,a1=2/3,若函数y=3x-1过点(an+1,an)求证:数列an-1/2为等比数列 2求数列 已知函数f(x)=3x+2,数列｛an｝满足:a1≠-1且a(n+1)=f(an)(n∈N+),若数列｛an+c｝是等比数列则常数c=_____ 急求一篇120字左右滴关于塑料袋滴英语作文?1一次性塑料袋的使用.2使用一次性塑料袋的问题.3限制一次性塑料袋的意义. 怎样把“请递给我两片面包好吗”这句话翻译成英语? 英语翻译Money can also be defined in terms of the functions it performs .As a medium of exchange it frees us from the need to barter,but at times,because of the loss of confidence in the continued acceptability of money in exchange for goods and when did zhangjie first become famous 用英语回答 i don't know when_____famous A.does he become B.he becomes C.did he become D.he become答案是B还是D呢,太纠结,顺便问一下C中助动词为什么不能加,陈述语序不能加助动词吗? when did Li Yuchun become the first supergirl?____.A.for one year B.before one year C.two years ago 英语作文 不用太多的.一小段都可以啦0.0理想的话不要老师就好 关于理想的英语作文(小学)最好一分钟, 写一篇作文,我的老师 600字好作文,好词好句多一些!急 世界遗产的导游词,100个字求你们了短一点 已知数列{an}的前n项和Sn=n的平方,n∈N,数列{bn}满足：bn=2的n次方乘an,且{bn}的前n项和记为Tn求数列a与b的通项公式 bn=|2^n-20|.,求数列前n项和Tn 求一篇100词左右的英语作文 bn=2∧2n-1,求数列bn的前n项和Tn详细过程 急! 谁能给我给一篇“你最喜欢的食物是怎么做的” 的英语作文!不要太多,能说3分钟就行（本人英语很烂,读英语也很差的）所以应该不用很多!这两天就要的愕! 求《我喜欢的运动（跑步）》的英语作文100词,急 求一篇关于自己喜欢的食物的做法英语作文!急! 写3篇英语作文 分别是关于理想中的房屋,最喜欢的食物,和某个地方3日游 数列bn的前n项和tn=3-bn,bn= 若bn=(-1)^n * n^2,求数列前n项和Tn bn=n/2^n,数列｛bn｝的前n项和Tn,比较Tn与2的大小 笑 冰心阅读答案 作者写这篇文章的目的是什么呢快 已知数列{an}满足a1=0,an+1=(an-3)/(√3an+1)求a20-√3a(n+1)=(a(n)-3)/(√3a(n)+1) PEP四年级英语下册所有单词. 写一篇作文 我的老师 英语翻译I had said goodbye to my husband,Joe,so often,but this time was different.We now had our first child.After nights of talks,we made the difficult decision that Joe would go by himself to Alabama for the six-month training course,and I woul 英语翻译Yesterday morning,it was already a quarter to eight when I got up.I was afraid that I would be late so I got dressed quickly and left without breakfast.There were so many people at the bus stop that it was not easy to catch a bus.Five min 求一篇英语作文 My bedroom 用上比较级 带意思的明天要交的 my bedroom的英语作文（最好有中文）