History of question #700903
| When | Who | Action | New State |
|---|---|---|---|
| Jan Stránský | Request for more information | Needs information | |
| 孙灿 | Give more information | Open | |
| Jan Stránský | Request for more information | Needs information | |
| 孙灿 | Give more information | Open | |
| Jan Stránský | Answer | Answered |
