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| primary segment | |||
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初始段 : 36 phrases in 14 subjects |
| Architecture | 2 |
| Aviation | 2 |
| Communications | 1 |
| Corporate governance | 2 |
| Electronics | 4 |
| Horticulture | 1 |
| Metallurgy | 5 |
| Microsoft | 1 |
| Mining | 1 |
| Nursing | 1 |
| Project management | 1 |
| Space | 5 |
| Technology | 9 |
| Wind Energy | 1 |
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