القماح
03-20-2020, 03:22 PM
exrecice de pollution 1( connaissances ) (https://drive.google.com/file/d/1vL-mAnr0ZQgjKIM_EN2YrTXhDxy6nj50/view?usp=sharing)
solution (https://drive.google.com/file/d/1fB_K0OXwvYG48dbPT2QX1XZ3NOk5qqam/view?usp=sharing)
solution (https://drive.google.com/file/d/1fB_K0OXwvYG48dbPT2QX1XZ3NOk5qqam/view?usp=sharing)