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| utility system | |||
| supply system | |||
| serving system | |||
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| care delivery systems | |||
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Versorgungssystem : 14 phrases, 9 sujets |
| Assurance | 2 |
| Automobiles | 1 |
| Économie | 4 |
| Électronique | 1 |
| Finances | 1 |
| Gouvernement, administration et services publics | 2 |
| Relations publiques | 1 |
| Science sociale | 1 |
| Technologie | 1 |