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| старые книги (записи) | |||
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故记 : 73 phrases in 12 subjects |
| Aviation | 1 |
| Business | 1 |
| Computer networks | 1 |
| Construction | 1 |
| Economy | 2 |
| Electronics | 11 |
| Energy industry | 1 |
| General | 22 |
| Information technology | 1 |
| Military | 4 |
| Technology | 27 |
| United Nations | 1 |
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