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最近迷上了看穿越小说,经常窝在红袖添香小说网过瘾,现在我对一个词有点不太明白,到底什么叫“架空”呢? “架空”是什么意思呢? lg（｜x+3｜+｜x-7｜）＞a a为何值时 解集为R 请问小说的时代背景中架空是什么意思 求解这道高中不等式数学题若a>b>c,则使不等式1/a-b+1/b-c≥k/a-c成立的最大k值是多少?【答案为K=4】 高中不等式数学题求解对于使-x2+2x≤M成立的所有常数M中,我们把M的最小值l做-x2+2x的上确界,若a,b∈R,且a+b=1,则-1/2a-2/b的上确界是?A9/2 B -9/2 C1/4 D-4答案为-9/2提问:为什么不能对式子直 谁能帮我详细解释一下马克思主义哲学是如何论证物质第一性和意识第二性的? 如何认识马克思主义哲学对物质第一性和意识第二性的论证 我的爱好 用英语说 怎么说 弦理论的弦是什么意思啊,求智者指点 根本是什么意思? 从中子星（质量为人类发现中子星里的中间值那种）上扣下来一块,放到地球地表上会是什么情况? 问一下怎么样才能做到做数学很快也很好,连难题都想的出来的? 填空：①：圆的周长总是直径的3倍多一些,它是一个固定不变的数,把它叫做圆周率,用字母π表示.1500多年前,我国伟大的数学家祖冲之,就精确地计算出它的值在（ ）和（ ）之间.②：（ ）叫 英语选择题解答与分析1.The Yellow River is the second () river in our country.A.long B.longest C.longer D.the longest 2.This year the farmers produced () grain () they did last year.A. as less…as B.as few…than C.less…than D.few 请分析与解答.16.Selecting a mobile phone for personal use is no easy task because technology _______ so rapidly.A.is changing B.has changed C.will have changed D.will change17.I _______ ping-pong quite well,but I haven’t had time to play sinc 用“生如夏花之静美,死如夏花之绚烂”为题,写作文,要自己写的 写作文的精彩开头 英语翻译Green Chemistry This experiment also demonstrates some of the principles of green chemistry (2):performing less hazardous chemical synth- eses,using safer solvents,and using safer chemistry to reduce accidents.These reactions involve blea 英语翻译Cleaning – Residents are responsible for cleaning the flat daily,but we do normally provide a limited cleaning service once a week for the following areas:shower,toilet and kitchen.Bedroom cleaning is not provided.A mop,bucket and vacuu 英译汉 不要在线翻译Stress will also be placed on contextually and culturally appropriate phrases and utterances since verbal and non-verbal communication is the standard by which people are judged and remains crucial in the study of Chinese 英语翻译The green barriers,which are actually a new type of trade barrier,have gained acceptance from the World Trade Organization.They can steer clear of many trade rules and render the competitors speechless.And the latter stand little chance o 宇宙大爆炸理论与弦理论会发生冲突吗. 弦理论认为的十维空间说,和宇宙大爆炸说有什么关系?是否十维空间是以宇宙大爆炸理论为前提的?弦理论认为的十维空间说,和宇宙大爆炸说有什么联系?“十维空间”和“宇宙大爆炸”相互 EF是矩形ABCD的对角线,AC垂直平分线,EF与对角线AC及边AD、BC分别交于O、E、F（1）求证：四边形AFCE是菱形（2）如果FE=2ED,求AE：ED的值 RT△ABC中,tanA=2,点F是斜边AB上一个动点,以F为圆心的圆和直线BC相切于点E.(1)AF和BE的比值是多少时,圆F经过点A?(2)AF和BF的比值是多少时,圆F和AC相似. 时光荏苒怎么读 黄帝| 颛顼 | 帝喾 | 尧 | 舜.怎么发音 颛顼 帝喾 "帝喾".后边那个字念什么啊? 英译汉(请不要用工具翻译或在线翻译)The pity is a party I do not invite into my life, not if there is always the promise of next time!I would rather look forward to that than regret the things that did not come to pass.I went for some d 帝喾,如何发音?近来读书发现的,汉语词典居然也查不到!确有其人吗?是姓姜?