 |
| |||
| пропорциональный отбор | |||
| пропорциональный выбор | |||
|
比例抽样 : 9 phrases in 3 subjects |
| Business | 2 |
| General | 3 |
| Mathematics | 4 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips