猜你喜欢
- 1宋濂在送东阳马生序中点出自己求学时干甘于吃粗粮穿敞衣原因的句子是
- 2一个三角形的面积是5平方分米,高是5厘米,底是多少?
- 3在一个棱长为10cm的正方体木材的相对的两个面中掏出一个边长为1cm的正方形小孔,这个图形的表面积和体积是
- 45分之7=( )时( )分,4分之9=( )米( )厘米
- 5Since Roman times,ostrich have been said to be so stupid that they react to danger by···
- 6I think math is a little d_____.Can you help me with it.
- 7写好作文,不光要多看书,还要多参加实践活动.正如古人说的那样"( )
- 8如图,把矩形纸片OABC放入平面直角坐标系中,使OA,OC分别落在x轴、y轴上,连接AC,将矩形纸片OABC沿AC折叠,使点B落在点D的位置,若B(1,2),则点D的横坐标是 _ .
- 9____from space,our earth,with water covering 70% of its surface,appears as a "blue plane".
- 10二次函数配方法解 y=x平方-x+2 用换元法解 y=2x+≤√2-x