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| environnement de système | |||
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System Environment : 41 phrases in 10 subjects |
| Chemistry | 1 |
| Communications | 7 |
| Environment | 6 |
| General | 5 |
| Information technology | 6 |
| Name of organization | 6 |
| Natural resourses and wildlife conservation | 4 |
| Statistics | 1 |
| Transport | 2 |
| United Nations | 3 |