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| структура порядка | |||
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序结构 : 28 phrases in 8 subjects |
| Computers | 3 |
| Electronics | 1 |
| General | 10 |
| Geology | 1 |
| Information technology | 4 |
| Metallurgy | 1 |
| Radio | 1 |
| Technology | 7 |
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