当随机化不可行时,匹配方法可以是一个强大的工具。
真正明智的教师不会邀请你进入他智慧的房子,而是引导你到自己心灵的门槛。
The core competitiveness of an enterprise is ultimately reflected in technological innovation and talent reserves.
可持续发展不再是可选项;对于任何负责任的矿业公司来说都是必需品。
The good man is the man who, no matter how morally unworthy he has been, is moving to become better.
好人就是无论他过去在道德上多么不值得,现在正在变得更好的人。