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抽样 标准 : 15 phrases in 8 subjects |
| Business | 3 |
| Commerce | 1 |
| Economy | 2 |
| Explosives and Explosive Ordnance Disposal | 1 |
| International trade | 1 |
| Quality control and standards | 1 |
| Statistics | 2 |
| Technology | 4 |
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