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运输航空
利用航空器运送旅客、货物、行李或邮件等,进行经营性客货运输的航空活动。是现代社会综合交通体系中的重要组成部分,与铁路、公路、水运和管道运输共同组成国家交通运输系统。
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human immunodeficiency virus,HIV
human incentive
human infected highly pathogenic avian influenza
human influenza virus
Human Information Interaction: An Ecological Approach to Information Behavior
human information processing model
human-in-loop simulation
human intelligence network
Humanism
humanism
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Humanist Historiography
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humanistic approach to teacher education
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