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急..很简单的黄金分割已知线段AB=4,延长AB到C,使AC=3AB,M为AC的中点判断线段AB是否是线段BM和BC的比例中项,说明理由. 规定a*b=(a－2.5)-(1又1/8－b),试求5又1/4*（3.5*3/16）的值. 英语翻译1.A cook will be immediately fired if he is found _________ in the kitchen.A smoke B smoking C to smoke D smoked2.Mrs White found her husband surrounded by letters and papers and ________ very worried.A look B looks C looking D to look 3. 英语翻译1.--- Let’s go and have a good drink tonight.--- ___________ Have you got the first prize in the competition?A What for B Thanks a lot.C Yes,I’d like to.D Why not 2.She is my aunt _________ my mother’s _________.A in ; side B in; si 求当a=-1/2时,分式1/(1-a)+1/(1+a)+1/(1+a^2)+1/(1+a^4)+1(1+a^8)+1(1+a^16)我算到32/(1-a^32)=32/(1-（1/2)^32)再怎么算? 当a什么时,分式4/8-a的值为正;当b什么时,分式1-b/2b^2+1的值为负 当a为何值时,分式1/a+2有意义 当a=2011时,分式a-1分之a^2-1的值是多少? 英语翻译58.Many people now make 　　　　a rule to buycards for their friends before Christmas.A.themselves　　　 B.it　　　 C.that　　　 D.this 当a____时,分式-2/a^2+1的值为负 英语翻译his------,subtle approach,analytical capabilites and broad clinical knowledge made him a brilliant doctora thillb intuitionc revelationd hypothesis 英语翻译how long have you ____this book?a.bought b.borrowed c.had d.lent you are new here,_____you?a.aren't b.are c.do d.don't那么如果是you aren't new here,就应该是are you了是吗? 英语翻译The audience are deeply impressed by the leading charactor of the film that looks -----at social problems a obviously b squarely c accurately d deliberately 英语翻译8.Does ____matter if he can't finish thejob on time?A.this B.that C.he D.it 计算(1+2)(1+2^2)(1+2^4)(1+2^8)(1+2^16)的值 计算(1-1/2)(1-1/2^2)(1-1/2^4)(1-1/2^8)(1-1/2^16)的值打错了，是(1+1/2)(1+1/2^2)(1+1/2^4)(1+1/2^8)(1+1/2^16） 我叫MT 种太阳”是哪一集? 3分之2*8=3分之4（ ）错,对 2×（3+1）×（3^2+1）×（3^4+1）×（3^8+1）+1=? 英语翻译一：汉译英：1.你听过8:00的广播了吗?（提示：broadcast 广播）2.这位教师已经九十多岁了,他毕生致力于教育事业.（提示：devote to把……奉献给）3.自从解放以来,中国发生了巨大的变 英语翻译1你应该少吃硬的东西.2你应该吃点食物.3你应该吃点药.4你应该少吃日热气的东西5你可以伸伸腰.6你可以尝试一下数羊.7你应该多穿点衣服8你可以用冰敷脸会多少就说多少,最重要的 英语翻译My uncle has bought a house with a garden in front of it.The underlinde part is_____(with a garden in front of it)A.subject B.object C.attributive D.predicative______a model one in our schoolA.Our class is B.Our classes is C.Our class are 种太阳 表达了作者的什么情感快 三颗枸杞豆中能体会几种太阳的含义 1/2-（3/4-3/8）, 1/2+1/4-1/6 , 2/3+（1/2+1/4）,1/2-（3/4-3/8）, 1/2+1/4-1/6 , 2/3+（1/2+1/4）, 英语翻译1 Thank you for your letter dated 15 March regarding this year's staff outing to Margate.2 We cetainly appreciate that you have retained last year's price for this outing.3 All our employees are very much looking forward to our day trip,a 英语翻译The faster anthing is thrown into the sky ,the higher it goes! 英语翻译This is really critical as we move into modern poetry,especially by writers who place so much importance on sounds that the meaningbecomes all better relevant,like this line by Gertrude Stein that I’d like toquote.特别是这句话：t 英语翻译I know that he is a man who (that) means what he says. 英语翻译However,that Malthus was wrong about his own period and the future need not imply that he was wrong about the past. 英语翻译翻译：1、我想你在长时间的飞行旅行后一定很疲劳.2、Millie得了107分,她位居第五.3、Tom迫不及待地要跟你学汉语句型转换：1、She lives in Room 302.____________________________2、There are 40 stude 英语题：句型转换.最好翻译下,谢谢了1. I failed English last week . = I ( ) ( ) English last week .2. I was surprised to look at him . = I looked at him ( ) ( ) .3.We should speak English as much as possible . = We should sp