—— 请按键盘 空白键 开始游戏 ——

Model checking is a powerful tool for verifying the correctness of hardware and software systems.
Our culture is not just something we carry in our hearts; it is the very fabric of our existence.
如今人们对每样东西的价格了如指掌,对它们的价值却一无所知。
农业现代化不是喊出来的,是做出来的。
The challenge for media companies is to find new ways to reach audiences and to make money from it.