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| отправитель сообщения: 66 phrases in 12 subjects |
| Aviation | 1 |
| Banking | 4 |
| Computer networks | 1 |
| Electronics | 1 |
| Information security and data protection | 4 |
| Information technology | 5 |
| Mass media | 37 |
| Microsoft | 2 |
| Programming | 4 |
| Security systems | 4 |
| Technology | 1 |
| Telecommunications | 2 |