公主的重量考试-你好科学-物理科学04.重量和平衡 - Tapa blanda

Hello! The weight of the test of science most cordial scientific principles of the Enlightenment picture books: The Princess(Chinese Edition)

paperback. Condición: New. Paperback Pages. Number: 33 Language: Chinese. The weight of the examination of the princess. princess a test to get married. she was to join in the test out of three questions. The three questions are answered correctly to be qualified on balance. the principle of balance and weight change. In looking for answers to your questions at the same time. we can become the weight knowledgeable Dr. In everyday life we ??can be seen everywhere such problems. such as the seesaw game and the balance i. Nº de ref. del artículo: N70372

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