e的-2x次方的积分怎么求啊

____your father at work the day ____yesterday(前天）A Was,before B Is,before C Was after D Is,after (佚)这个字念什么,用拼音读 帮忙写一篇英语短文,是要读给外教的What's your opinion about the educational system of your country .Do you think there should be any changes? where is the north korea?It's ____ the North of China Where is the bbh china headquarters,is that Baoji or Shenzhen? There are some new kinds of books in the library.they are___books.A.child B.childrens' C.children D.children's 关于谈谈诗歌重要性的英语作文 写一篇关于学习诗歌的好处的英语作文, I think the boy is clever.改为否定句 Jim does morning exercises every day.改为一般疑问句快啊·······谢谢了! Tom always does some exercises in the morning.改否定句 图书馆里有一套新书 There is a new（）（） books in the library 图书室里有很多书.There are ___ ___ ___books in the library. 英语作文用诗歌的形式来说明树木的重要性 图书馆有各种各样的书 There are ___ ___ ___books in the library There are ( )books in the library （There are ( )books in the library （ ）内应该填写什么 人以5米每秒向正东方向前进,感到风以5米每秒从正南吹来,则实际风速是多少?风向是? 自行车向正东行驶,车头有一面小旗向正南飘,使小旗飘动的风从哪个方向吹来/四个选项：A：西北方B：正北方C：东北方D：正西方 某人坐在速度为15m/s,向正东方向行驶的汽车上,觉得风从20m/s的速度从正南吹来,实际风速是( ) .A 17.5m/s向东偏北 B 25m/s 向西偏北 C 25m/s,向西偏南 D 25m/s,向东偏北 ., 英语翻译：in spite of what you thought was true or expected to happen! 英语翻译：尽管阻力重重并屡遭失败,这位科学家还是坚持实验（in spite of) 希望长大后能为 嗯打球用英语怎么说 我希望你能为我感到高兴 英语怎么说RT the saltwater room中英版.lrc歌词下载 there's always the city library was,a,there,in,of,the,campus,new,the,library,centre,连词成句, there was----,-----,-----,in the city yesterday有 一幅 图 图上 就是 下大雨,三个空哦 in the city there was the dentist 冬天的童话?怎么翻译? 写给外教的平安夜的祝福语 《德国——一个冬天的童话》题解. 《德国 一个冬天的童话》是谁的诗歌 sb.be sure of+从句和sb.be sure that+从句 有什么区别吗?另外两种句型都加什么从句,除了从句还可以加什么?