—— 请按键盘 空白键 开始游戏 ——

The key to successful investing is to have a clear understanding of the market, the risks involved, a disciplined approach, a long-term perspective, a strong understanding of the fundamentals, a clear understanding of the risks and rewards, and a strong understanding of the market psychology.
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。