双曲正切函数的导数

库伦定律是什么? 对某人撒谎除了 tell a lie to sb.还可以用lie to sb. 吗? 有tell to sb 那有没有tell sb在改成定语从句中 Tom tell a story to us.Do you like the story?改成：Do you like the story that Tom tell to us?老师这样说,可我觉得应该是Do you like the story that Tom tell us?把tell to us 中to 跟“不”长得很像的那个字念什么?也像“木”字不出头 “增长”的“长”念什么﹖ 长养,怎么念?信为道源功德母,长养一切诸善根.这个长养的长,是念增长的长,还是念你的个子比我长的长. 英语里的一长串数字怎么念1403100030087 是一个一个读过去还是有什么其他读法? 长的英文怎么读? me,my,every,mother,play,piano,wants,evening,the,to 连词成句喔! our school sports meeting is held once a year同义句 our schoolsports meeting ____ __ once a yea为什么 our school sports meeting take place once a year这句话对么,take place的take用加S么 our school——（have）an English Day once a week,中间填什么? he would be the last person to tell a lie.（这句话为什么是：他决不会说谎的意思.请英语大仙指点迷津.跪谢,） He is the last person ______ I want to see.A.who B.whom C.that请问这道题选什么?并说明原因,及不选其他选项的原因, 有什么英语电影片段适合4人在课堂上表演?老友记里的也行 有没有四人演的英语电影片段（两男两女）? 我想起了过去美好的回忆.改病句,怎么改啊 电器元件被烧坏的直接原因是电流过大还是电压过大?另外,是不是只要保证其中一个（电流或电压）不超标,元件就不会被烧坏? 空气开关能不能保护因电压突然过大而烧毁电器农村因电压突然很大 烧坏了几个家电 Do they have a sports meeting ___ their school We ______ (have) a sports meeting next weekend. I think doing sports is great --------(fun) I think doing it is right.这句话有没有语法错误 求百度朋友帮我设计一个英文名字?求百度朋友帮我设计一个英文名字,我的名字叫范志锋,请大家帮我设计一个英文名字!有分加! 四个人的英语剧本要长一点 每个人至少10句 公园只售两种门票：个人每张5元,是人一张的团体票每张30元,购买10张以上的团体都可优惠10%（后面还有,急今有208人逛公园,最少付多少元? I don't think he is right.为什么不能是 I think he isn't right. you think he is not right 和you don't think he is right 只有第二个对?还是两个都对,只不过更习惯于用第二个? 公园只售2种门票：个人票每张5元；10人一张的团体票可以优惠10％,今有208人逛公园,最少付多少钱 谁知道出国英语口语怎么搞?我表姐邀请我暑假去英国找她玩,嘻嘻好开心.不过我打算去之前先在国内练练口语,免得去了和老外说不了话,再憋死我~对了,我家是哈尔滨的. 1.We have learned ___10 English songs this term.A.at all B.at one C.at times D.at least 2.At the foot of the hill you could hear nothing but the ___of running water A.noise B.shout C.sound D.voice 3.Shanghai is such a beautiful city that I would like