资本资产定价模型并非旨在描述投资者实际行为的实证理论,而是关于理性投资者应如何行事的规范理论。
The difference between ordinary and extraordinary is that little extra.
教育是我们建设更可持续水产养殖产业的基础。
The only thing that counts is what cannot be explained.
过去从未死去。它甚至还未过去。