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检验字 : 31 phrases in 11 subjects |
| Aviation | 1 |
| Business | 1 |
| Earth sciences | 1 |
| Electronics | 4 |
| Information technology | 4 |
| Mathematics | 3 |
| Metallurgy | 1 |
| Space | 2 |
| Statistics | 1 |
| Technology | 7 |
| Telecommunications | 6 |
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