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| 随机样本; 随机抽样; 随机选取; 随机抽样随机选取 | |||
| 随机存取; 任意存取 | |||
| произвольная выборка: 28 phrases in 7 subjects |
| Computers | 3 |
| Electronics | 1 |
| General | 13 |
| Information technology | 3 |
| Military | 1 |
| Oil processing plants | 2 |
| Technology | 5 |
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