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| 基数指染色体; 基数 (b) | |||
| 底数 | |||
| 基数; 碱值 | |||
| base number: 31 phrases in 15 subjects |
| Animal husbandry | 1 |
| Automobiles | 1 |
| Aviation | 1 |
| Business | 1 |
| Chemistry | 1 |
| China | 1 |
| Computers | 1 |
| Economy | 2 |
| Electric machinery | 1 |
| General | 2 |
| Mathematics | 2 |
| Oil / petroleum | 1 |
| Oil processing plants | 2 |
| Space | 1 |
| Technology | 13 |
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