布莱克-斯科尔斯公式的美妙之处在于它仅依赖于一个不可观测的参数,即股票的波动率。
"We are all our own graveyards I believe; we squat amongst the tombs of the people we were."
启蒙就是人类脱离自我招致的不成熟状态。
解释:信任是百姓、国家赖以生存的根基,不能失信于民。
The future of meat processing lies in balancing efficiency with sustainability.
虽然我准备好成仁了,但这事赶晚不赶早。