History of question #219290
| When | Who | Action | New State |
|---|---|---|---|
| yong sheng gong | Answer | Answered | |
| Isaku Yamahata | Request for more information | Answered | |
| huangichin | Reopen | Open | |
| Isaku Yamahata | Answer | Answered | |
| huangichin | Reopen | Open | |
| Isaku Yamahata | Answer | Answered | |
| huangichin | Confirm | Solved |
