一队学生从甲地到乙地，速度为4km/h,当行进1km时

故宫太和殿屋檐上的仙人走兽这些仙人走兽叫什么? 北京故宫太和殿的屋顶形制是 已知A（0,1/n）B（0,-2/n）C（4+1/n,0）其中n为整数,设Sn表示△ABC外接圆的面积,则limSn=? 心满意足中“意”的解释 亚麻凉席好吗 亚麻凉席怎么选 亚麻凉席品牌排名哪种好 最近老是做梦怎么回事? 最近总是头晕偶尔恶心是怎么回事? 下列命题里1若an+bn的极限存在,且an的极限存在,则bn的极限存在2若an乘bn的极限存在,且an的极限存在,则bn的极限存在3若an/bn的极限存在.且an的极限存在,则bn的极限存在4若an+bn的极限存在,且an-bn 此极限是怎么求的? 过程写在纸上 请把过程写在纸上 写在张纸上用过程 写在纸上 藤席好还是竹席好夏天睡哪一种席子比较好?感觉竹席太凉了 藤席和竹席哪个好的? 竹席好还是藤席好?竹凉席好还是御藤席好呢? 补全对话A-Shop assistant B-Mrs.WangA:Can I help you? B;[ ].I'm looking at these sweaters.A:May I know who it is for?Maybe I can give you some advice.B:sure,It's for my son.A:[ ]B:He is thirteen. A:How tall is h 用适当的话语补全对话?A:Hey,Bob!1.______________?B:Yes,I do.Our school is very big and nice.A:Are you good with your new classmates?B:Yes,I am.They are friendly to me.A:2.________________?B:Mr.Miller.His Chinese is very good.I like his class 补全对话请帮忙____there a garden in ____of your house? 求补全对话 (1/n+1)^n极限n趋近无穷怎样推知等于e?那e值又是怎么来的呢? [(1/3)^(n+1)-(1/2)^(n+1)]/[(1/3)^(n+1)+(1/2)^(n-1)]的极限等于( )A)-4 B)1/3 C)0 D)-1/4 金银铜铁锡各自出现的时间及被人类广泛使用的时间如：1.金银铜铁锡是他们出现时间早晚的排名吗?2.铁的广泛使用是在春秋战国,锡则在更早的夏朝左右就被融入铜中制作青铜.锡比铁出现的 衡量金融安全性的主要指标有哪些 英语作文------------------------ 什么地方不好,Last Saturday morning ,Mr Chen left home early to go fight .He was fishing all the went home .At the time ,He knew Mir Chen know he did get ang fish was very angry .So he went to the shop ,and b 二次函数y=3(x-1)平方+k,无论K取何值时,其顶点必在 (1-1/n)(1-2/n)…(1-k/n)的极限 当K为何值时,抛物线y=2(x的平方）＋（k＋1)x＋k^2－k＋１的顶点最低?求出最低点坐标 帮我看看这篇英语作文有什么应该改进的地方.My favourite bookA book is a good friend.I have many books and my favourite book is Andersen Fairy Tales.It was written by Hans Christian Andersen.Hans Christian Andersen was born in Denmar 这篇英语作文有什么地方需要修改Certificate Craze Nowadays there is a "certificate craze" on campus .Thousands of college students are keen on working for various certificate,such as CET Band 4 and Band 6 certificates,Business English Ce 求化学高手解答~题目：现有木炭、一氧化碳、氧化铜、氧化碳、稀硫酸五种物质,它们之间发生反应,可用接上：“A+B→C+D”表示.若A溶液pH＜7,A与B在常温下反应,可观察到溶液由无色变为黄色,