Preparation, operation and management of private eruity 并列题名：Preparation, operation and management of private eruity Safe operation and management of cross-sea bridge Safe operation and management of small reservoirs 并列题名：Safe operation and management of cross-sea bridge 并列题名：Safe operation and management of small reservoirs Operation and management of travel service Legal issues on operation and management of tourist attraction Designing, operation and management of a convention center Operation and management of practice