The discovered chance elements are in truth adequate to materially explain the predicted worth improve on the place and, if (two) the designs utilized to determine sensitivities to those threat elements are correct. 单向双向：某些产品的手续费只在开仓时收取，有些则在开仓和平仓时都收取； On ne change rien à ce qui est en educate de se passer, mais on modifie https://www.youtube.com/watch?v=qMmsQ4kKgY4