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等 级级差 : 37 phrases in 14 subjects |
| Agriculture | 1 |
| Aviation | 1 |
| Business | 7 |
| Construction | 1 |
| Economy | 7 |
| International trade | 1 |
| Mathematics | 2 |
| Metallurgy | 2 |
| Oil / petroleum | 2 |
| Project management | 1 |
| Space | 1 |
| Statistics | 1 |
| Technology | 9 |
| Wind Energy | 1 |
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