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| 偶校验 | |||
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| PE | |||
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parity even : 25 phrases in 11 subjects |
| Business | 1 |
| Data processing | 1 |
| Electronics | 1 |
| General | 2 |
| Information technology | 2 |
| Mathematics | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Space | 3 |
| Technology | 7 |
| Telecommunications | 5 |
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