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paperback. Etat : New. Paperback. Pub Date: 2018-04-01 Pages: 119 Language: Chinese Publisher: people's publishing house of science micro film classic series of school-based curriculum is written by the science and technology. film and television. education of first-class experts both at home and abroad. the team 10 years ago as the China association for science and technology for the development of scientific DV resource pack.The micro film science.…