化学符号大全初三

圆柱底面半径扩大两倍,高扩大两倍,圆柱的体积扩大几倍? I'll do my best to understand you 翻译中文 如何让她理解,她是最重要的? 英语翻译She said that good-bye.Probably.It is caused by the fact that I registered you morimori 14:26:47I made friends with youmorimori 14:27:00She knows itmorimori 14:27:20It was said that good-byemorimori 14:27:24morimori 14:28:12I must delete 如何让孩子明白责任感的重要性 如何让大家了解到净化空气的重要性呢? 购买上帝的男孩阅读题答案,要准确率,不要跑堂,购买上帝的男孩一个小男孩捏着1美元硬币,沿街一家一家商店地询问：“请问您这儿有上帝卖吗?”店主要么说没有,要么嫌他在捣乱,不由分说 回答下面的数学题,要准确率,不要跑堂,X已知X²+3X+1=0,求(1)x+1/x,(2)x²+1/x²+2x+2/x的值前面一个x是多打的 回答下列数学题,要准确率,不要跑堂,直角三角形的最长边长为13,最短边长为5,则这个三角形的面积为A65/2 B30 C78 D无法计算 英语中的语法填空有什么技巧没, 大家帮我看看这个句子的结构?A and B tell me that they have been expecting a splendid crop this yearand harvesting has began earlier than usual .时态不懂啊大家帮我说说have been expecting a spiendid cropharesting has began earlie 连词成句parents,me,late,back,let,won't,my,come 幸福瞬间作文500字,要正常点的,不要太恶心.只要一次幸福瞬间，跟自己有关。 请看这个句子的结构,我分析的对吗What we hear on the radio or see on TV is only a small part of all the wonderful music that is waiting for us.这个句子有些长.What we hear on the radio or see on TV 是个主语从句,第二个问 设集合M={x|f（x)=0},N=={x|g（x)=0},则方程f（x）乘g（x）=0的解集? 设集合M={x / f(x)=0},N={x / g(x)=0},设方程[f(x)]2+[g(x)]2=0的结集是?（用M,N的形式表示） 题 第八题做一下 帮偶做下这道题 超急` 晚8点要`两个圆柱体的高相等,它们的底面积半径的比是3：4.已知较大圆柱的体积是256立方厘米,那么较小圆柱的体积是多少?（不可以用解方程,或者解比例） 已知函数f(x)=√1-x^2,g(x)=x+2,若方程f(x+a)=g(x)有两个不同的实根,求a?a的取值范围是2-√2 关于"contain"的用法有四个句子,1.I contain several dictionary2.Sea water contains salt3.A dog contains four legs4.Mr Smith contains glasses on his nose 英语 根据中文填英文I can play baseball ______(好） 这个中文音英文怎么填 大为不解的意思是什么? 已知函数f(x)=x^+ax,g(x)=2^x-a,且1/2 已知函数f(x)=x^2+ax,g(x)=2^x-a,且1/2 各位帮我看看这几句英文.我找的结构对不对?I don't want to hear 我不想听到I 是主语 want是谓语 hear是宾语 to是定语 don't是状语I don't want to know 我不想了解I 是主语 want是谓语 know是宾语 to是定语 亲爱的老师们,请帮我看看这个英语句子的结构吧!Graduate work at the University of Chicago found him connected with honorable educators Charles Judd and W.W.Charters,whose ideas of teaching and testing had an effect on his later work 我们工作、生活中常用的计算机属于微型计算机,也称个人计算机,英文简称什么? 不会吧用英文怎么说 请问我这句语法对不对.谢谢. The two chats given contain the information about theThe two chats given contain the information about the reasons for study among students from a variety of age groups and the number of support which they obta contain的名词