求证可导的周期函数，其导数亦是周期函数

ut the jailer closed the doornoisy cells of the men's wardlawn on the boulevardsin the prison office But they also want a man who's soft and kind!里的“who's”是什么意思?我知道是who is,但是串起来不通顺. soft什么意思 by the way的同意词组是什么 英语(可怜) 英语(可怜求) 1.Thousands of houses ___ by the floods in Guangxi laset month.A.destroy B.destroyed C.have destrory D.were destroyed 2.the famous writer introduced us his new book that will ___next mouth.A.give out B.come out C.put out merriam webster's vocabulary builder 请求发一份到yr5211314@sohu.com, guilt by association生物学什么意思 英语翻译我顺利已收到你的二封来信,在些我要先谢谢你对我们国家的那场灾难的关心表示真诚的谢意.而他们在政府及各界人民的帮助下也已重建家园,那些失去父母的孩童也得到最妥善的安 帮帮写篇简单的英语信.你的朋友ANN经常生病,给她写封信,告诉她应该如何保持身体健康.建议：1.多参加体育锻炼 2.多到户外活动,呼吸新鲜空气 3.多吃水果、蔬菜 4.多喝水和牛奶 5.保持 The dumplings your mother made_____well and everybody likes them(sale) 用适当的介词或介词短语填空 .Zhao Hua is sitting _____ _____ _____ me.Zhao Hua is sitting _____ _____ _____ me.Miss Li is standing _____ _____ _____ _____ the classroom and teaching building. 有关星座的英语作文,主要是介绍自己的星座本人是处女座,男,大家帮帮``` 谢啦` music has little appeal for me 为什么用for呢 求张根锡My Precious 和My Bus的铃声 Billie Jean的ＭＶ什么意思啊,看不懂啊我说的是ＭＶ中要表达的意思,不是歌词的意思啊 英语翻译Increasingly,financial firms have a stake in these markets too.Trading in agricultural futures ,once a backwater,has boomed in recent years.In addition to atri-businesses,more instiutional investors,ranging from hedge funds to pension fud borrow与lend的区别,并加上例句, 托福口语task4的题型一定是use example in the lecture to .,也就是一定是阐述lecture中的example吗?求神相助! 新东方词汇进阶“Vocabulary 23000”=“Vocabulary Basic”+“Vocabulary 6000”+“Vocabulary 12000”吗?这本书是什么记忆技巧啊?是词根呢还是逆序还是什么? 新东方词汇进阶和刘毅一样吗?我是说包凡一和王玉梅的一种~那么新东方词汇进阶23 000就和刘毅22 000一样咯？ 地震家庭逃生方案 英语翻译 Baiyun Hotel is a___Building A,thirty-two -stories B,thirty-two-story 冠翻译为帽子时读什么音? 急求一首英文歌曲开头是一群小孩子嬉耍的声音．是个女歌手唱的．只记得有one more time这句 a couplhave six children but they never bear one child why? per child or They need some warmmer clothes _____ the winter.用介词填空 some more hamburgers 还是 more some hamburgers they/need/food/Sunday lunch?(What...)这道题怎么写?例子：Karen/to the supermarket?(Where...)A:Must Karen go to the supermarket?B:Yes,she must.A:Where must Karen go?B:To the supermarket.