请问成绩如何分级？
如果学生在考试中不合格，将被标注“AB”，如果学生因故没能参加考试，请联系老师，在下周重新参加考试。以下表格为具体的成绩评级。
| Letter grade | Percentage | GPA points | Academic Standing |
|---|---|---|---|
| A | 90 and above | 4.0 | Honors |
| B+ | 85 – 89 | 3.5 | Excellent |
| B | 80 – 84 | 3.0 | Above average |
| C+ | 75 – 79 | 2.5 | Average |
| C | 70 – 74 | 2.0 | Pass |
| D | 65 – 69 | 1.5 | Fail |
| F | Below 65 | 0 | Fail |
| W | - | Fail | |
| Ab | 0 | Fail |
