ȘTIINȚE EXACTE

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https://drive.google.com/open?id=0B5LstnttqU8gdUswVGNLVUV2RFU

https://drive.google.com/open?id=0B5LstnttqU8gQS1JS2xJWm01R3M

 
 
https://drive.google.com/open?id=187XSkGadVJhJaPhcjhElpO6y08QhkyUJ

https://drive.google.com/open?id=1kk9xcMTotRVYy2GazOKzFNgE8uQSfMG6