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可接受水平 : 19 phrases in 11 subjects |
| Aviation | 1 |
| Business | 2 |
| Electronics | 1 |
| Environment | 1 |
| Fishery fishing industry | 2 |
| Information technology | 1 |
| Mathematics | 3 |
| Space | 1 |
| Statistics | 2 |
| Technology | 4 |
| Wind Energy | 1 |
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