有5个数据按从小到大的顺序排列，前3个数的平均数是75，后两个数的平均数是82。这5个数的和是（）

求帮我快速记忆gymnasium这个单词,用故事什么的,中文谐音什么的都可以 儿化音说不清|>>?怎么发儿化音,我不会发儿化音..我是四川人... he gave his listeners a vivid account of his journey through Peru.请问这句话的含义,如标题. 单词license的谐音记忆法 A book has given us a vivid account of the life in the desert 怎么翻译啊! David puts 2.00 a week in to his bank account.David takes 20.00 out of his bank account and goes to the shopping mall.He looks for a perfect gift, Suddenly he sees a beautiful brooch in the shape of his favourite pet.He says to himself,"Mother loves Do you live for bread or a belief?What if your belief dies out?, 关于人类高尚品德的英语文章,200单词以上 从已知的有确实证据的人类出现以后,人的思想道德有没有变得高尚一些?最好能提出依据。 such as后面动词是不是原形,像such as doing homework、washing shoes a bird lives in the tree的提问 As if + doing 和 As if + to do 的区别RT.Thanks! such as doing,doing and doing 多位名家对林黛玉的评述? be to do something和be doing something有何区别 美丽的家乡作文300字 Who could have imagined such a sweet-tempered girl as Alice DOING such a thing!为什么要用doing非谓语的形式,such……as,as后面不加一个句子吗,从句不是缺少谓语吗 防阳光中紫外线的眼镜是否可以用于焊接防护 I dont know what trouble you have之后加什么加to do 还是doing I don't know what the ___(solve) to her trouble is. walk me home的语法问题walk me home=walk with me home?省略了with?home在这里做副词修饰walk?谢谢! ―_______________________?---I’ve got a bad cough I've got a bad cough.能不能说I get a bad cough. he stood there with his eyes ( looking) upward 为什么括号里的要用现在分词啊! 求girl's day something的mp3! Have you ever made dumplings跟Do you ever made duHave you ever made dumplings跟Do you ever made dumplings有什么区别? 有girl’s day 的something的空间链接么?有的话,发过来, while you are crossing the street,you must be carefui句型转换___________the street,you must be careful Be careful when your crossing the street.这个句子错在哪,Be careful when your crossing the street.这个句子错在哪, 高中单词太多了,你是怎么背诵的? ----Did you tell Julia about the result?----Oh,----Did you tell Julia about the result?----Oh,no ,I forgot .I _____ her now.A will be calling B.am to call C.call D.will call 为什么要杀蒋介石?要有历史事件为依据.以张学良的角度