Isbn: 9787542757685 - 一步学科学：改变世界的发明 9787542757685 (1 risultati)

paperback. Condizione: New. Ship out in 2 business day, And Fast shipping, Free Tracking number will be provided after the shipment.Paperback. Pub Date :2013-07-01 Pages: 234 Language: Chinese Publisher: Shanghai Popular Science Press invention is the starting point for technical and production activities - have chipped stone . artificial fire. and began the human material production . also began to constantly rewrite the social life of human history . Technological change and progress . improvement. social and historical development of the productive forces and the people's living standards . are inseparable inventions. .Four Satisfaction guaranteed,or money back.…