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- 1请问 兰花×5=荷花 荷花×5=梅花 月季×5=菊花 菊花×2=梅花 月季/2=?代表什么?
- 2在下列图形中:①等腰三角形;②正方形;③正七边形;④平行四边形;⑤梯形;⑥菱形,一定是轴对称图形的是_.
- 3因式分解1/2x²+2xy+2y²
- 4Jack is twice as old as Jill ,but in five years time he will only be one and a half as old as Jill.
- 5六分之五加二分之一减二分之一加五分之四怎么做最简便?
- 6It's friendly of you to help me with my English.(改同义句)
- 7如图,在△ABC中,AB=AC,以AB为直径的圆O分别交AC,BC,于D,E俩点,点F在AC的延长线上,且∠CBF=1/2∠CAB.求证:
- 8关于X、y的二元一次方程组{x+2y=3m x-2y=5m} 的解满足x+4y=6,则m=_________.
- 9本人急求in which.on which .by which .with which.for which .of which 的用法解析 ...
- 10一个小女孩的外貌描写(可爱+内向