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| 一个数字的; 一位数的 | |||
| one-digit: 19 phrases in 7 subjects |
| Computers | 1 |
| Corporate governance | 1 |
| Electronics | 1 |
| Geophysics | 5 |
| Metallurgy | 2 |
| Oil / petroleum | 1 |
| Technology | 8 |
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