—— 请按键盘 空白键 开始游戏 ——

A work of art is a work of art because it's called a work of art.
The best innovations are often the simplest solutions to the most persistent problems.
客户的需求就是我们的追求,我们要用优质的产品和服务赢得客户的信任和满意。
Mathematics is the language in which God has written the universe.
数学不知道种族或地理界限;对于数学来说,文化世界是一个国家。