—— 请按键盘 空白键 开始游戏 ——

The pursuit of mathematical knowledge is a journey that never ends, filled with endless curiosity and wonder.
The power of a story lies not in its length, but in its depth and the universality of its themes.
解析:教导学生,不到他想弄明白而不得的时候,不去开导他;不到他想出来却说不出来的时候,不去启发他。