| When | User | Flag Type | Description |
|---|---|---|---|
| 2014-01-24 03:59:21 | Thumb | Invalid | No modification since at least 3 years to all the comments about R7 |
| 2014-03-11 09:01:00 | Matrok | Invalid | too many possibilities are ignored |
| 2015-01-23 12:47:11 | db051235 | Duplicate | 1 段的第一題 |
| 2016-08-01 09:09:42 | ãã§ãŸã¾ | Duplicate |