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| цепь набора номера | |||
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dial network : 18 phrases in 11 subjects |
| Communications | 1 |
| Computer networks | 1 |
| Electronics | 2 |
| Information security and data protection | 1 |
| Information technology | 3 |
| Mass media | 1 |
| Microsoft | 1 |
| Military | 2 |
| Technology | 3 |
| Telecommunications | 1 |
| Telephony | 2 |
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