如何证明数列收敛

《蝉》这是一首咏物诗,从（ ）、（ ）、（ ）等三个方面写出了蝉的特点? 高中数列第二问有点难度请讲下Snmain怎么得来 It was (friday yesterday.对括号部分提问 （ ) （ )was it yesterday? It was (Wednesday) yesterday 对括号里的部分提问 ______ _____ _____ it yesterday 对April 22nd提问 谁能帮我写篇500字的日记 题目 是《2008年最令我难忘的一件事》最好是以第三人称写 He is one of my friends.(改为同义句） He is a friend_____ ______there are some differences between mary and kate.mary____　＿＿＿　　＿＿kate He is one of my friends.的同义句 chance和change的关系 有没有谁知道chance在英文中读是什么意!还有change是什么意思?如题 Change&Chance!歌词 change和chance的区别 The last chance for change 啥意思 ? Now I’m in Singapore.Here is a 11 sale.On Orchard Road(路) there are 12 big stores.You can see （ ）11.A.long B.short C.big （ ）12.A.many B.much C.lot（ ）13.A.BUY B.SELL C.SALES（ ）14.A.vegetable B.fruit C.clothes（ ）15.A.very B.only it was _friday_ yesterday .(对话线部分提问）_______ was it yesterday? it is （friday）soccer yesterday afernoon（对括号里提问） but if we never search the chance of success is success is a choice 求翻译 Friend is someone who we met by chance but became friend by choice怎么翻译成汉语 These are the conditions that we must accept.这个怎么翻译啊? be preparing for和be prepared for的区别 Tiis is one of my friends的同义句 关于下面两道题的区别.preparing 与prepared23.Seeing the soldiers well_____ for the flood-fight,the general nodded with satisfaction.A.prepare B.preparing C.prepared D.having prepared这道题选择C.prepared 11 .The secretary worked late in I drove back on to the road.这里为什么用to呢? I want to ask you what is the meaning of those words 每年4月23日是谁的辞世纪念日 4月23日被联合国定为什么节 请问:chance"和"opportunity"的区别是什么啊``?它们都是名词` 都有"机会:的意思``` 请帮把:Happiness is a choice 译成中文谢谢. It is by chance we met,by choice we become friends这句话是什么意思 魔方第三层怎么拼啊 前2层会了 Young and Beautiful 歌词