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Учитель в школе поставил научный эксперимент — посадил в разные клетки двух крыс, одной стал давать морковь содержащую витамин ро�...

The teacher at school made a scientific experiment - he put two rats in different cages. One of the rats was given carrots containing vitamin of growth, and the other did not feed. Time passed, and the rat, to whom nothing was given, became...