คำแนะนำของผู้เขียน
Test sumativ:
-resurse naturale
-fenomene ale naturii
-poluare
-schimbări ale stării de agragare a apei
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คำแนะนำของผู้เขียน
Test sumativ:
-resurse naturale
-fenomene ale naturii
-poluare
-schimbări ale stării de agragare a apei