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stratification f | |||
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Stratification f |
estratificação: 28 phrases in 12 subjects |
Agriculture | 1 |
Coal | 1 |
Earth sciences | 1 |
Economy | 1 |
Environment | 5 |
Industry | 2 |
Life sciences | 1 |
Mathematics | 8 |
Natural sciences | 1 |
Social science | 2 |
Statistics | 4 |
Transport | 1 |