物理课时作业本答案

初二两道不是很复杂的数学题,麻烦快点,谢谢(要过程)1.如图MN-9.,正方形ABCD的边长为a,E是BC边上一点,且AE=8,F是BD上一动点,AF=FC设折线EFC的长为b,求b的最小值,并说明此时点F的位置.2.如图MN-8, I wish you to have a pleasant trip to Beijing this month,_______?反义疑问句 《培根随笔》读后感500字 查字典,指出下列各句中" 闹 "字的意义(1)这里 闹 得很,无法看出.(2)孙悟空大 闹 天宫.(3)你不要再 闹 情绪了.(4)一定要把问题 闹 清楚.(5)她又哭又 闹 . DID YOU ENJOY ____(PLAY)BASKETBALL 查字典,先解释带点的字,再联系上下文写出词语的意思 培根随笔读后感500字左右 求培根随笔读后感500字 do you play the Mike draw a picture on the backboard.(反义疑问句)Mike draw a picture on the backboard,( )( 关于反义疑问句People should pay attetion to the environmrntal problem,________? 谢啦,反义疑问句,必谢 晴雯怎么被赶出了大观园?为什么抄检大观园? MATLAB 如何赋值 画实部虚部图像 画图clearclcsyms a j k n u e A y in=4,a=1,e=1for k=1:1:nfor j=1:1:nif(k==j)A(k,j)=0else A(k,j)=0endendendfor k=1:1:nfor j=n+1:1:n+nif(k==j-n)A(k,j)=1else A(k,j)=0endendendfor j=1:1:nfor k=n+1:1:n+nif(k-n==j 帮我看看两道数学题,初二的1.一个水池的容积是90m³,现在水池中用一定量的水,如果保持一定的速度向水池中进水,那么1小时后水池中有水15m³,5小时后水池中有水35m³.(1)写出水池 跪求两篇读书笔记和一篇读后感500字左右太长绝不采纳,如果好的话必有重赏!谢.. 这道题怎么做【反义疑问句】1,he hasn't paid for the school things,has he?【no,he hasn;t,】his father will pay for him2,he has paid for the school things,hasn't he?【 】his father won;t pay for him1和2有什么区别,2该怎么答 一.查字典,解释括号内的字在句字中的意思 1.小峰一(张)口,就是一大串的词语.2.他神色慌张,东(张)西望.3.六一一到,校园里(张)灯结彩.4.这家文化用品店开(张)营业了.5.他的学习成 what shall i do 和what should i do 意思 查字典,解释带点字在不同句子中的意思1.我们人类能造出光速飞车吗 速:( )2.我不请自来,可以说是不速之客了 速:( )3.处理这件事要速战速决,不能前怕狼后怕虎,速:( ) Our teacher told us the ____ story I had ever heard at yesterday's class meeting. (sadly) To __ surprise,he won the first prize in this singing competition.A:my B:me C:mine 语法书上:反义疑问句 当陈述句谓语动词为,实意动词,助动词时,疑问句需要重复这些词,但是:It must be fun,_______?应该填isn't it 我们老师给出的解释是must表猜测,我想知道,这里的must是不是情 It_____(surprise)everyone that Jack got the first prize in the singing competition. what else should I do什么意思 To ____surprise ,Jim won the first prize in the singing competition.A.me B .my C.I D.mine Our English teacher taught us the English song in class yesterday.被动的两种说法 I feel wandered to say that I don`t believe what he said.feel wandered 啥意思? 抄检大观园中表现出惜春,迎春怎样的思想性格特征? -what a terrible earthquake!I can ()believe that!-But that's true.It's said that ()people werehurt or dead.空格一  A almost not B hardly C nearly not空格二  A tens of thousands of B ten of thousands of C ten of thousand of 分别选什 简述晴雯的性格特点 1一个很小的小球带有电量Q.在距离球心30CM处的A点放了一个试探电荷q=-1X10的负10次方C,q受到的电场力为1X10的负8次方N,方向指向球心.求:⑴A点的场强的大小和方向⑵如果从A点取走q,A点场强大