Quotation galleryAim for success, not perfection. Never give up your right to be wrong, because then you will lose the ability to learn new things and move forward with your life.Dr. David M. Burns
Олимпиада
10.03.2012 Кафедрой ОХиХВМС проведенV тур командной олимпиады по химии среди школьников.
