渥太华大学，硕士材料申请问题

fallyUID: 3659040

Dear **

Unfortunately, while trying to calculate your average we came across a  small problem. In order to properly calculate an applicant's average we require  accurate information regarding the grading system used at each institution.  Therefore, you will need to provide official grading system information for  Shenyang Jianzhu University. The following sources will be able to issue  official grading scale information.  

1- Official institution's website
2- Official letter from the institution
3- Official letter from the Ministry of Education (China)
请问一下大侠们，它要提供的是是什么东西呀？我和学校已经沟通了很多次，他们都不知道这到底是什么东西，说没开过，请问一下高手，这几个东西是什么，该怎样办理。，谢谢。