名誉对人的利与弊

周期为2π的函数f(x)为____函数时,其傅里叶基数是正弦级数. 设f(x)是以2为周期的函数,在（-1,1）上,f(x)=2,x^2傅里叶级数在x=1处收敛于…… 将函数f(x)=2+|x|在[-1,1]上展开傅里叶级数. 蒸腾失水的门户,气体交换的窗口,是什么结构 形容一个人很丑陋的成语? 英语语法改错题目1,The headmaster wanted the new classroom building to put up as soon as possible.to put up 怎么改?为什么?2,The stranger you saw to come in with a big traveling-bag stayed in Room 101 yeasterday.to come in 在这里改为 求暗地里形容一个人丑的成语 几个英语语法改错题,1.There are strange similarities in the life 76._________of John F.Kennedy and the life of Abraham Lincoln.For 77._________example,Kennedy became a president in 1960,while Lincoln 78.________elected in 1860.This was exactl 植物进行气体交换时需要能量吗?能量从哪里来? 植物靠什么结构与外界进行气体交换? 植物的保护组织是怎么控制气体交换的能力的? 植物与外界进行气体交换的场所?气孔是植物与外界进行气体交换的：“窗口” 是不是说明气孔是植物与外界进行气体交换的场所呢? 英语语法改错（ ）41.What do you usually do to congratulate your birthday?A B C D（ ）42.They both meet once every third weeks.A B C D（ ）43.All we have are her birthday cake,Let’s divide it.A B C D（ ）44.I don’t know how to do nex 形容一个人很臭美用什么成语 英语语法改错高手进1,It is no doubt that we will find out the truth sooner or later.这里面为什么要把it改为there?It is no doubt that 和 there is no doubt that 之间区别是什么?2,It is difficult for you to get a room face the la 英语语法改错··求高手··!I saw many athletes who always weared confident smiles to prepare for their different challenges. 请指出句子的错误,改正,并说明原因!感激·· 英语语法改错改错高手请进1,The university for the aged offers courses of computer ,music,English and so on.2, You are cordially invited to a party being given at our institute at 1;30 p.m this Sunday.3,Computers have came to be widely us 写出带月的诗句.1、鸟宿池边树,（ ）2、露从今夜白,（ ）3、野旷天低树,（ ）4、（ ）,呼作白玉盘.5、（ ),江枫渔火对愁眠. 常见单子叶,双子叶植物有哪些? 各种描写夏雨的词语 描写夏雨特点的句子要有修辞手法的 观察的视野既有气泡又有细胞,用镊子尖轻轻压动盖玻片,气泡有什么变化? 一句英语语法问题Enclosed is our quality agreement please sign it and in duplicate, then return to us one for our file汉语意思想表达：附件是我们的质量协议,请将它一式两份签署后返回我们一份存档.以上语法有 观察的视野中有气泡又有细胞,有镊子尖轻轻拉动盖玻片,气泡出现的变化是?A 会变形 会移动 B 会变形 不移动 C不变形 不移动 D 不变形 会移动 一句英语语法的问题~Blinded by a meaningless imperfection and impossible goal,Aylmer had thrown away her life and with it his chance for happiness.这句话中的with it 和后面的his chance是什么?并列? 怎样能快速提高英语语法 英语语法问题1应该如何改正这几句话啊?1.do they have a master or other 2.what differences in eating habits in different countries 3.what differences in New York 摩根定律和德摩根定律是不是同一个定律? 单双子叶植物都有哪些快速 求关于夏雨的诗句夏天雨的特点是什么?找写这个特点的诗. 描写夏雨的句子 看似相近的成语,意思却有不同的偏重看似相近的成语,但是却有不同的偏重比如殊途同归和异曲同工（后者偏重于结果是好的）