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| 公开/私有: | 公开 私有 |
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| 公开/私有: | 公开 私有 |
- 宇宙 (7)
- 儿童故事 (6)
- 德国 (6)
- 现代 (6)
- 天文学 (3)
- 天文望远镜 (2)
- 摄影艺术 (2)
- danger perception (1)
- ferrets as pets (1)
- genius (1)
- high technology industries (1)
- internet industry (1)
- inventions (1)
- inventors (1)
- new business enterprises (1)
- personality and creative ability (1)
- situational awareness (1)
- small business (1)
- technological innovations (1)
- 企业创新 (1)
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