求一个函数的n阶导数

写"假期"的英语作文 1、It's cold and _____.A.snowy B.snowing2、It's ____outside.Take an umbrella with you.A.rainy B.raining3、Mr Brown_____them Chinese very well.A.teaches B.is teaching我想知道1和2题的两个选项在用法上有什么区别,我只知道一个 四脚蛇是蛇么 英语选择, 英语翻译第二章介绍研究阅读的背景和意义.第三章分析阅读在学习中的重要性；第四章老师运用口耳嘴阅读教学法结合学生实际,开展组织一些阅读课,并通过这些课程让学生们提高学习兴趣. 英语,选择, 英语选择,我会给好评的. 初二英语反义疑问句题谁有初二的英语反义疑问句的题啊.越多越好. 求选择答案. 选择理由?英语, 蛇和蜥蜴虽然外形不同,但他们的共同特征是什么 英语翻译1.The radiation dose,if radiation sterilization will be used,and if it has been determined.processed into finished form for purchase .这是一段医疗设备的申请说明.请高手翻译一些, 过去进行时, 初二英语句式（过去进行时 过去时 现在进行时）（过去进行时 过去时 现在进行时） 初二英语根据过去进行时和一般过去时 用动词正确形式填空1.While we （cook）,the telephone rang.2.The boy (play) the piano when his mother (come) back.3.While Li Lei (have) a great time playing with his pet,Jim came in.4.While 走自己的路,看自己的人生!翻译成英文 每个月1号.10号.20号为本店的休息日.英文怎么说?. 英语翻译one of thoes questions was about directions to a local restaurant and the Google Maps walking directions and the directions I needed to get there safely while walking and biking were two very divergent things.表示长句看不懂,太纠 苏教版五年级上册英语书Unit9的C、D部分怎么写,急死了! 苏教版小学英语五年级英语课本第六单元c/d部分答案 1.I know it's not important but I can't help_____about it.A:to think B:thinking C:thinks D:think2.I____you with the funds.Why didn't you ask me?A:could have provided B:should have provided C:must have provided D:ought to have provided3.While I____the He was concerned ______the crime.A in B about C with D of A Liu tao and I are ( )different classes. 英语翻译VARIATION OF LOADING AND OVERLOADINGLoading varies considerably from one site to another.The recent england data shows ratio of 1:13 between the most and the least trafficked sites,when expressed in Equivalent Single Axle Loads(ESAL value toefl阅读上的A devastating outbreak of disease the strikes for the first time against a completely unprotected population is known as a virgin soil epidemic.为什么A devastating outbreak of disease,后面又有一个 the strikes?两个名词? 托福阅读题里的一个小段落,求英语大神帮忙翻译（最好有点注释）For example, the claim that breakfast cereal has a health benefit may be accompanied by the disclaimer"when part of a nutritionally balanced breakfast." However, 英语翻译1、Certainly,rational appeals in advertisingaimed at children are limited,as most advertisements use emotional andindirect appeals to psychological states or associations.2、 In the recent past,the role ofcelebrities in advertising to c 尤其是懂托福的,With the advent of projection,the view's relationship with the image was no longer private,as it had been with earlier peepshow devices such as the Kinetoscope and the Mutoscope,which was similar machine that reproduced motion b 六月用英文怎么讲 小的不会英文,哪个好人能帮忙翻译下,感谢! 求外语高手帮忙英语翻译下!谢谢了! 我没有分了.只能求好人了!Type Allocation Holder Nokia Mobile Equipment Type Nokia E72 GSM Implementation Phase 2/2+ IMEI Validity Assessment Very likely Information on range assignmentEst