 |
| |||
| обратная операция | |||
| обратное действие | |||
| inverse operation: 4 phrases in 4 subjects |
| Electrical engineering | 1 |
| Makarov | 1 |
| Mathematics | 1 |
| Technology | 1 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips