—— 请按键盘 空白键 开始游戏 ——

Every problem in NP can be reduced to the satisfiability problem, which is the cornerstone of computational complexity theory.
来吧,一旦你觉得自己懂得了什么,就必须换一种角度来看。这可能显得很荒唐或者愚蠢,但必须试一下。
商业中最危险的一句话是:“我们一直都是这么做的。”
Diplomacy requires enduring patience and steadfast determination to drive the resolution of complex issues.