—— 请按键盘 空白键 开始游戏 ——

每一个挑战都是伪装的机遇;你只需要去寻找它。
The rule, or measuring rod, which the behaviorist puts in front of him always is: Can I describe this bit of behavior I see in terms of "stimulus and response"?
The Langlands program is a framework for understanding the unity of mathematics.
股市的波动是由人的情绪驱动的,而不是由经济基本面驱动的。