| Knowledge Item Name | pigment |
| Curve | Normal |
| Question/Answer | |
| Review Date | 2020/3/21 21:11:02 |
| Next Review Date | 2020/4/1 16:23:02 |
| Review Times | 3 |
| A pigment is a substance that gives something a particular colour. |
| Grade | Easy Factor | Review Date | Next Review Date | |
|---|---|---|---|---|
| 4 | 1.8 | 2020/3/21 21:11:02 | 2020/4/1 16:23:02 | |
| 5 | 1.8 | 2020/3/15 10:48:26 | 2020/3/21 10:48:26 |