| |||
| 层次号码 | |||
| 层次编号 | |||
| 中段号; 层数; 层次号码 | |||
| 层号; 级号 | |||
|
level number : 13 phrases in 9 subjects |
| Aviation | 1 |
| Business | 1 |
| Chemistry | 1 |
| Electronics | 1 |
| General | 1 |
| Mathematics | 1 |
| Space | 1 |
| Statistics | 2 |
| Technology | 4 |
| |||
| 层次号码 | |||
| 层次编号 | |||
| 中段号; 层数; 层次号码 | |||
| 层号; 级号 | |||
|
level number : 13 phrases in 9 subjects |
| Aviation | 1 |
| Business | 1 |
| Chemistry | 1 |
| Electronics | 1 |
| General | 1 |
| Mathematics | 1 |
| Space | 1 |
| Statistics | 2 |
| Technology | 4 |