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差值法 : 19 phrases in 11 subjects |
| Artificial intelligence | 1 |
| Business | 2 |
| Chemistry | 1 |
| Earth sciences | 1 |
| Economy | 1 |
| Electronics | 1 |
| Marketing | 1 |
| Mathematics | 1 |
| Oil / petroleum | 3 |
| Space | 1 |
| Technology | 6 |
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