谁的青春不迷茫作文

已知数例{an}满足:a1=1,an+1=an+n+1,请写出该数例的前5项,并据此写出通项公式an on second thoughts意思 On second thoughts,I'd better decline ___invitation to her party this weekend for ___third time.A.the...the B.the.../ C.the...a D.an...theWhy C 《我爱这土地赏析》 Her smooth with lines around her eyes.求翻译 又收到一条英文求救短信内容是：help please call me I am in an emergency以前收到过一次内容格式一模一样的短信显示是男友的手机号,但他说没发过这短信,问移动的人也不清楚怎么回事,于是没放心 围绕要多读书这个内容写一句具有魅力的语言! 一条短信 是关于一个英文单词质量,自然对数之底,小球半径平方,纵坐标,电容,高度,电阻,瞬时电流,路程,时间,质量,位移专为理科生设计的祝副25号前看懂,是一个英语单词 1.昨天,李明在演讲比赛(speech competition)中取得了第一名 翻英文2.你是什么时候开始学英语的?3.他是一位富有创造力的人. 你知道谁在演讲比赛中获得了一等奖吗? 英文 do you know who ____ ____ ____in the speech competition? 英语如何说“昨天下午我收到一条短信” He beat me in the English speech competition.同义句改为 He＿the＿ ＿ the English speech competition 信息来临英语怎么写 有没有英语高手帮我看看这个句子 首先,对家庭.其次,对社会.First,families.Secondly,the society.为什么第一个用First,是不是应该用Firstly,这样才可以和Secondly对应啊还有 我觉得，应该是First,to families. 怎样把英文写的好看? We don't go to the school assembly every morning.We have it t____a week I likebroccoli because they're healthy food错在哪 怎样把英文写的好看呢?我英文写得确实不工整,来年就要考研了,作文又占很大比重.我的英文怎么练可以写的好点,工整点呢? besides the water,a plant takes up such parts of the soil as are dissolved in the water.这句话用到了什么语法项目,有什么固定的词组吗 （拍照）的英语怎么写呢? it takes up such parts of the soil as are dissolved in the water植物还吸收土壤中的那些溶于水的东西这句的such 和as不太明白什么意思,such是那些?as相当于which? 同意句改写 China attach great importance to water protection and takes it as the state's stratery改为：China 3空the state's stratery空一格she attaches great importance to water protection. coupling agent偶联剂;偶合剂这俩个有什么区别么?什么时候称为联,什么时候称为合?化工词典看了,分不清, coupling with这个词组是什么意思啊~?怎么用? 甲数是乙数的62.5%,甲数与乙数的最简整数比是（ ）. Kamlock coupling 如何翻译? DOCUMENTARY STORYTELLING SECOND EDITION怎么样 NATIONS AND NATIONALISM SECOND EDITION怎么样 ELECTRICAL ENGINEERING 101 SECOND EDITION怎么样 INTRODUCTION TO ALGORITHMS SECOND EDITION怎么样 甲数是乙数的百分之62.5,甲数与乙数的最简整数比是? 英语(添字)drink put meat cut vegetables cook water vegetables1.Wash the ________and the ________.2.________the meat and the________into small pieces.3.________the meat and the vegetables in a pan.4.Add some ________and salt.5.________slowly for h