排球边23战术

Most of the students like to study at home_____computers.A.on B.in C.for D.as will there be school in the future?( ) l think that students will study at home on the Interent.A Yes,there will.B No,there won'tC On,there is not. 我国古代数学知家祖冲之在公元5世纪就已算得圆周率π的近似值在3.1415926与3.1415927之间,分别写出保留1个,2个,3个,4个,5个有效数字时π的近似值? 函数y=根号(x-3)+lg(9-x)的定义域 求函数y=二次根号下3^(2x-1)-1/9 的定义域 函数f(x)=根号下(2x+1)/(2x-3)的定义域是________. 函数y=根号下(x^2-2x-3)+1/|x|-3的定义域根号下x^2-2x-3是一个整体 再加上后面那分式 我想弄懂这题 go,home,the,in,l,afternoon,fifteen,four,at连词成句. at home I five go the in afternoon 连词成句 like you why winter 连词成句 连词成句：in,home,twenty,the,four,I,usually,at,afternoon,go(陈述句) children,school,finish,home,go,and,at,about,afternoon,the,three,o'clock,in(连词成句） children,school,finish,home,go,and,at,about,afternoon,the,three,o”clock,in连词成句 圆周率=3.141592653...如果取近似值3.142,他精确到哪一位?有几个有效数字?如果取近似数3.1416呢? 圆周率的近似值在3.1415926和301415927之间,若保留5个有效数字,则近似值是多少,精确到多少位 圆周率π=3.141 592 653...,如果取近似数3.142,它精确到那一位?有几个有效数字?如 求函数f(x)=根号x+2+lg[(2x-5)平方-9]的定义域 改错school is over.the students can go to home now school is over at 4:00 A .school is closed B.Class is over C.We can go home （school is over） at 4:00 与括号意思相近的是 A .school is closed B.Class is over C.We can go home is it time for the students to go to school or go 函数y=根号2x-x^2/lg(2x-1)的定义域 函数Y=根号lg(2x -1)的定义域是要有完整的过程 三个连续的偶数之和是24三个连续的偶数之和是24,他们的最大公因数是（ ）最小公倍数是（ ）要说为什么? 函数fx=根号下1-x+lg(x-1)的定义域是 加减乘除少一点打一字 加减乘除少一点,打一字. “加减乘除少一点”是什么字?(猜字谜) 猜字谜 加减乘除少一点急 1、三分之二与x的差乘3,积是多少?2、比40%还长30%是多少米? 某企业积极落实十八大精神,争取通过增收减支,到几年年底时企业利润翻一番,该企业的具体目标是：保证今年总产值比去年增加20%,总支出比去年减少20%.已知该工厂去年的利润（利润=总产值- 几道数学题.紧急1——15以内的加减法,越多越好,不要得数,谁写的多采纳谁 加减乘除去两点,猜一个字