如下：
| Grade | Grade points per unit | Interpretation |
| A+, A, A- | 4.0, 4.0, 3.7 | Excellent |
| B+, B, B- | 3.3, 3.0, 2.7 | Good |
| C+, C, C- | 2.3, 2.0, 1.7 | Fair |
| D | 1 | Poor (Barely Passing) |
| F | 0 | Fail |
| P | Pass | C- or better, assigned to undergraduate students only |
| NP | Not Pass | Below C- |
| S | Satisfactory | B- or better, assigned to graduate students only |
| U | Unsatisfactory | Below B- |
| I | Incomplete | Work of passing quality but incomplete for good cause (students must obtain the instructor's permission) |
| IP | In Progress | Course must be approved for IP grading |
| W | Withdrew | Withdrew after fourth week of instruction, or after second meeting of some laboratory courses |
| X | Pending charge of academic dishonesty (available only within the eGrades tool) | |
| Blank | Grade not reported by instructor |
参考资料：Grading SystemUCSD
/@荏苒柔木具体A+，A 代表的分数范围是什么呢？
可见这里：College Board GPA算法
