List the Mathematics & Statistics courses you have completed and the level at which you have taken them. 大家觉得这个 the level at which you have taken them是什么意思?
我认为有两种含义:1、我的成绩如何 2、你上过的课的等级如何,比如是introductory or advanced? 我问了几个同学,也没有肯定的答复。所以希望大家给予解答,万分感谢!