I'm a practicing physician trying to help people here and now.我是一名此时此刻只想治病救人的执业医师。Don't mention the past. What we are talking about is the here and now.别提过去, 我们说的是现在.I'll advance you the money for it, here...
The lognormal distribution , like the normal, is completely specified by its mean and standard deviation.对数正态分布,如同正态,以其平均值和标准差被完全地指明.Price Models: Constant price model, General deterministic price model Lognormal price m...