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点序列 : 30 phrases in 9 subjects |
| Agriculture | 2 |
| Aviation | 1 |
| Business | 2 |
| Economy | 3 |
| Explosives and Explosive Ordnance Disposal | 5 |
| Genetics | 2 |
| Metallurgy | 3 |
| Statistics | 9 |
| Technology | 3 |
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