—— 请按键盘 空白键 开始游戏 ——

数学是一种思维方式,而不仅仅是一堆事实。
"Life is not measured by the number of breaths we take, but by the moments that take our breath away."
心灵需要书本,就像一把剑需要磨刀石。
数据是新时代的石油,但如何提炼才是关键。