—— 请按键盘 空白键 开始游戏 ——

Behavior is determined by the current stimulus situation and past reinforcement history.
The study of automorphic forms is a reflection of the depth of mathematical thought.
爱国主义是一种有害的、精神错乱的白痴形式。
The best ideas come from collaboration, not isolation.
醉中插花,花莫笑我,可怜春天也像人一样即将老去