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著者:
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Marsico, Katie. |
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题名:
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Drones / , |
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出版发行:
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出版地： New York 出版社： Scholastic 出版日期： 2016 |
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载体形态:
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48 pages 22cm. |
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内容提要:
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Learn all about unmanned aircraft, or drones, including how they were invented and improved over time, what they are used for today, and why they have sometimes caused controversy. |
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主题词:
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Drone aircraft |
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主题词:
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History |