小学三年级语文作文

已知函数f(x)=lg(/x+a/+/x-a/-2)的定义域为R,则实数a的取值范围是? 求下列函数定义域y=√~1-(1/3)和y=1/log5(2x-3)急求函数定义域：根号下1-（1/3）x方和y=1/log5(2x-3)不好意思问题打错了补充的才是正确的 求：《钢铁是怎样炼成的》《骆驼祥子》读书笔记各10篇（200字左右） 骆驼祥子读书笔记200字10篇跪求.谢谢 答对一题加10分,答错一题扣6分,1号选手共抢答10题,最后得分36分,他答错了几题? 将一根10米长的长方体木料(沿横截面)锯成相等的两段后,表面积比原来增加了80平方分米,长方体原来的体积 would you like to go shopping with me this afternoon?___A)no way.I`ll do my homework.B)it`s a pleasure C)well,I feel like staying at home.D) I have no time I'm s____ ,but i can't go shopping with you this afternoon I.单项选择（15分） ( ) 1.— Would you like to go shopping with this afternoon?— I’d love to,bu谁帮忙做做, 放飞梦想作文怎么写只要提纲 运用平方差公式计算：(a-b+c-d)(a+b-c-d) ,就是想不通=[(a-d)+(c-b)][(a-d)-(c-b)],谁能解答下,第二个多项式里的是正b,为什么一到式子里就变成负b? 放飞梦想,写给未来的作文,600子还有符合爱国爱校爱家乡, 放飞梦想的作文 关于作文.."放飞梦想"我没梦想..也没理想 每天似乎行尸走肉要写作文..什么"放飞梦想"笑 没梦想 我何来的放飞?大家说说这篇作文该怎么写(不要复制,不要复制文来应付) 系数、次数、指数是什么意思?+_+~ 数学次数和指数是什么? 什么是次数,什么是系数?讲的详细点吧、最好举几个例子.因为前天感冒,落课了,没有人讲解,数学书上的一堆我都看不懂呐- -坐等,好在追分. 数学指数和次数是什么意思? My mother will （go shopping ）this afternoon 对括号提问 1.I suggest_______(go) shopping this afternoon.2.Do you enjoy_____(watch) TV 3.We dislike _____ (read) long articles.4.Stop ______(shout),it's time for class.5.I have finished ___(write) the composition.6.Do you mind my /me_______(smoke) here 7.They Let's go shopping this afternoon.(同义句改写）要 _____ _______ going shopping this afternoon?的句式 ∫∫ |xy-1| dxdy D= 0≤x≤2 0≤y≤2 绝对值打开后 怎么写分段函数?答案是：3/2+2ln2 Let‘s go shopping this afternoon?(改同义句）（ ）（ ）going shopping this afternoon? Y=|x+1|+|x-1|去掉绝对值的分段函数式? 2号选手共抢答8题,最后得分64分.她答对了多少题?（答对一题加10分,答错一题扣6分） what about ( ) basketball this afternoon?A.to play B.playing C.play What about play football this afternoon有一处错误,是哪 I want to go shopping this afternoon,what about you?A.so Idid B.so i do C.so i did D.so do i (I don't know choose which,please tell me why?) Would you like to go shopping with me this afternoon?请问这句英语有没有错. 电灯泡的瓦数为a瓦时,t小时（h）用电量为1000分之at千瓦时乘以h,如果一只25瓦时的的灯泡平均天用电3h,那么每月（按30天来计算）用电多少,列式子也行,能说过程最好列 4位LED共阴极数码管驱动我采用4位共阴极LED,MY3641AH和LG3641AH都用74HC245驱动,现在存在以下问题：MY3641AH用74HC245驱动则不亮,改用74LS245驱动,则电源发热严重,限流电阻位330欧；LG3641AH采用245 都没有 一千克力乘以一米除以一小时等于多少瓦