Theory and practice of accident risk management for large-scale events 并列题名：Theory and practice of accident risk management for large-scale events Theory and practice of peak hours management for scenic area Theory and practice of agricultural management information system Theory and practice of urban management performance evaluation Study on price risk management of large-scale farmers 并列题名：Theory and practice of peak hours management for scenic area Theory and practice of multi-stability and management for eco-industrial chain theory and practice of students' participation in assessment Theory and practice of laboratory risk management