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总氧化 : 30 phrases in 10 subjects |
| Agriculture | 1 |
| Animal husbandry | 1 |
| Earth sciences | 2 |
| Ecology | 4 |
| Electronics | 1 |
| General | 1 |
| Nursing | 1 |
| Surgery | 2 |
| Technology | 15 |
| Water resources | 2 |
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