In the past CFAI used a strictly numeric method of calculating the pass rate - they'd take 70% of the 95th percentile score. So, back in the day, the minimum passing score would be no greater than 70%, and would typically be even less.

也就是说，取最高成绩的前5%的人的平均分为满分，乘以70%就是最低通过分数。

这是取决于前百分之五的人分数，所以很难说确定的争取率，官方是说70%得正确率是肯定能过的，我个人觉得保险一点，60%就差不多了，因为能考到90%正确的人是少之又少的。

对道德好像没有最低要求的说

道德 must be above 70% to pass. it is a requirement.  If you fail that part you will fail the exam.  Seriously.