John also csn play volleyball.The baseball is you?No,it's her ,mine ison the platform .
最新问答: x^2-5X-10=0 3x^2-1=2X+5 2x^2+7X=1=0 x(x-1)=3X=7 求下列方程的和与积, 洛必达法则的使用条件? we have been flighting all your 四年级数学练什么四年级数学练什么题目(上下册数学书) 一袋大米重25千克,每天吃掉2分之3千克,12天后还剩下多少千克大米? Modern technology in the household.(reduce) the amount of la 如何移动3个点,使杠杆省力(3种方法) it don't make any difference这首歌,是不是病句 甲数的5倍等于乙数的9倍,乙数是甲数的几分之几? 以距离为话题的作文400字 急用 we decided to put up signs around the school and_____notices The reserve section of the library is due to close in one ho They are good places to__summer in the city.求横线上的内容 It's best to go there by bus. 已知25(sina)^2+sina-24=0,且a为第二象限角,则cos(a/2)=? 铜为什么不和浓硝酸发生钝化反应、、、求详解、、、 以一个字为中心写一段话至少用四个成语大全 有一些糖,第一天吃掉一半,第二天吃掉剩下的一半,还剩五颗,问总共有多少糖? 氢氧化钠滴定盐酸的过程中的质子平衡式为什么是氢离子浓度加上氢氧化钠的浓度等于氢氧根的浓度与盐酸的浓 定义在R上的奇函数满足对任意x,y,f(x+y)=4f(x)f(y)+f(x-y),f(1)=1/4,则f(2011)=