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| Arbeitshefte m | |||
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| Arbeitsheft n | |||
| Arbeitsbuch n | |||
| Arbeitsmappe f (One matrix, or a collection of matrixes, that use a single model site as a data source) | |||
| Übungsbuch n | |||
| Inglés tesauro | |||
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| .wkb (file name extension, WordPerfect) | |||
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workbooks : 3 a las frases, 2 temas |
| Cuidado de la salud | 1 |
| Microsoft | 2 |