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| least cost | |||
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最小成本 : 33 phrases in 14 subjects |
| Agriculture | 1 |
| Animal husbandry | 1 |
| Aviation | 1 |
| Business | 6 |
| Chemistry | 1 |
| Economy | 5 |
| Environment | 2 |
| Finances | 5 |
| Information technology | 1 |
| Oil / petroleum | 3 |
| Space | 1 |
| Technology | 2 |
| Telecommunications | 2 |
| Textile industry | 2 |
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