 |
| |||
| etapa | |||
| altura tonal; tom | |||
| |||
| passo de interferência | |||
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خطوة : 25 phrases in 9 subjects |
| Automatic control | 2 |
| Electric motors | 10 |
| International Monetary Fund | 1 |
| Microsoft | 6 |
| Sound recording | 1 |
| Telecommunications | 1 |
| Telegraphy | 1 |
| Transformers | 2 |
| Video recording | 1 |