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| тот же конверт | |||
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同 : 115 phrases in 10 subjects |
| Biology | 1 |
| Communications | 1 |
| Electronics | 3 |
| Geology | 2 |
| Mathematics | 5 |
| Nautical | 1 |
| Radioengineering | 4 |
| Technology | 89 |
| Telephony | 3 |
| Television | 6 |
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