—— 请按键盘 空白键 开始游戏 ——

Theorems are the milestones of mathematics.
Innovation is not imagination out of thin air, but based on a deep understanding of user needs.
"The past is never dead. It's not even past."
Protecting marine resources is protecting the future of humanity.
能够显示的,就不能说。
"The past is not a place to live, but a place to learn from."
有利于国家、人民的事情就要坚定的实行,有害于国家、人民的事情就要坚定的铲除。