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Bonjour, très bientôt nchallah
mercii mrr
mr na7na mil action mecanique lil astronomie la terre et l univers w chimie reaction chimique w hydrocarbure
slm mr wsolna fil Phy lil pression w chimie propagation rectiligne de la lumiere
مرحبا
NO MR MERCI
وينهم البقية
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