90-100 = A+ 85-89 = A 80-84 = A- 77-79 = B+ 73-76 = B 70-72 = B- 67-69 = C+ 63-66 = C 60-62 = C- 57-59 = D+ 53-56 = D 50-52 = D- 0-49 = F 这边大学一般是50分是及格线。2。不知道，抱歉