—— 请按键盘 空白键 开始游戏 ——

在计算学习理论中,挑战不仅仅是学习,而是理解学习是如何可能的。
要在法律之外生活,你必须诚实。
In mathematics, the journey of discovery is often more rewarding than the destination itself.
The history of mathematics is a testament to the ingenuity and creativity of the human mind.