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ISBN 10: 7556865150ISBN 13: 9787556865154
Da: liu xing, Nanjing JiangSu, JS, Cina
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paperback. Condizione: New. Paperback. Pub Date: 2022-06-01 Pages: 138 Language: Chinese Publisher: Why does 21st Century Press build a space station? The space station is so big. how is it built? Why doesn't the space station fall down? What did the first space station look like? How did our country enter the space station era step by step? How do astronauts breathe. eat. and sleep on the space station? Astronauts are floating around. how do they go to the toilet? Is Evacuation just a space walk? Do you have many quest.