Đmitri Ivanôvích Menđêlêep (1834-1907): Menđêlêep was a social activist and was famous for Russia. He graduated from the University in 21 years has served as a high school teacher, then taught at the University of Pêtécbua chemistry majors, he did turn over France, Germany to study.
đang được dịch, vui lòng đợi..