设函数f（x）=1/x^3+ax^2+5x+6在区间[1，3]

将Please open the door改成否定句如何改 求音乐：one two three 感动你 我要 123在一起 please open the window.改为否定句 谁能帮我把英语单词分类,例：数字 one two three…… 月份：…… 星期：…… 是中考所有的英语 please touch you hair 变为否定句 99的英语单词,不要缺任何 一个,比如one—first two—second three—third 到99的. 在我心里,一直有你过用英语怎么说 我心里有你,你呢 的 英语怎么说啊 在我的心里,一直有你过 英语怎么说急需哈.. 从此心里不再有你 英语怎么说 Sunday is the first day of the week and S______is the last day of the week . during which 和during which time 的区别①They stayed with me for two weeks,____they drank all the beer I had.A.for which B.which time C.during which time D.during which选 C during which time 中time 可以省略吗?另外当which 做形容词修饰time 时和whose有何区别? He lived in london for 3 months,during____time he learned some Eglish.为什么填which,不填that另外The boss __department Ms King worked ten years ago looked down upon women .填in whose的原因,而为什么不填in which The time--- I spend on math is much more than on English A that B when C at which D during which the time during whichThe time when I first met him was a very difficult period of my lifewhen为什么可以改为during which还有百度上说的during which 和during which time的区别按照：看前面修饰的名词是指具体的时间还是 "实际行动"用英语怎么说? — How much _______the blue pants?—_____twenty dollars.A.is,It is B.are,They're C.are It is— How much _______the blue pants?—_____twenty dollars.A.is,It is B.are,They're C.are It is D is They're .—How much ____ the pair of shoes?—Twenty dollars ____ enoughA.is; is B.is; areC.are; is D.are; are为什么要选这个答案 英语翻译They added up to two dollars and six and a quarter cents.着重翻译：two dollars and six and a quarter cents. courier和 express有什么区别啊?这两个单词汉语意思比较接近,有没有知道它们的区别的, can you express?in englisha.youself b.youc.yoursd.yours' 应该选什么 为什么 I wish to express my strong interest in seeking employment with XX as a XX.?I wish to express my strong interest in seeking employment with XX as a XX.这句话中,第一个XX代表什么?第二个XX又代表什么? “她同约翰结了婚”How to express in English? want to you what eat do?连词成句 连词成句英语 school do to after over want you come连词成句(英语) school,do,to,after,over,want you,come 中文意思也要！！！！！！！！！！！！11 A.number.of和the.number.of一样吗?〈原因〉 A number of guests who came from home and abroad attended the Shanghai Expo. Identify responsibilities including the number of people supervised. The Shanghai Expo is so popular that the number of visitors from all over the world comes to a▁▁400,000every day 首字母填空 Many combine mantissa and exponent into a 32-bit number twenty-five dollars, 这里的短横线是不是必须的ralph你说的查过了，是在哪查的，权威吗？