—— 请按键盘 空白键 开始游戏 ——

大胆梦想,从小事做起,立即行动。
Mathematics is the art of asking the right questions and then finding their answers.
【大意】等到大寒节气到来时,冰霜寒雪从天而降,然后才能知道只有松柏能经得住严寒考验,依然繁茂。
It's not supposed to be easy.Anyone who finds it easy is stupid.
Quality is not a accident; it is a decision.