| |||
| 一级抽样 | |||
|
primary sampling : 17 phrases in 10 subjects |
| Agriculture | 2 |
| Automobiles | 1 |
| Business | 2 |
| Demography | 1 |
| Electronics | 1 |
| Forestry | 1 |
| Marketing | 1 |
| Statistics | 2 |
| Technology | 5 |
| Textile industry | 1 |
| |||
| 一级抽样 | |||
|
primary sampling : 17 phrases in 10 subjects |
| Agriculture | 2 |
| Automobiles | 1 |
| Business | 2 |
| Demography | 1 |
| Electronics | 1 |
| Forestry | 1 |
| Marketing | 1 |
| Statistics | 2 |
| Technology | 5 |
| Textile industry | 1 |