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BIM is more and more widely used in the construction industry. Based on various relevant information data of construction projects, building models are established. By adopting BIM, construction companies can use consistent information to design and optimize projects throughout the process, and can also support better communication through visual appearance, so that all parties to the project can understand the cost, construction period and environmental impact. BIM supports architects to better predict the completed buildings before construction, so that they can maintain their competitive advantage in today's increasingly complex business environment.2. Three approachesFirst, the number of top talents in the industry is relatively limited and there is a shortage of good teachers. Second, the good and bad products are intermingled, but ordinary consumers lack the ability to distinguish, leading to the expulsion of good ones from bad ones. Third, giants enter and crush start-up organizations with large resources...　　驚鴻俠影，群龍並起風雲湧。Deletes all rules in the specified chain of the specified table. The-F option means to empty the rules in the corresponding chain. Think twice when executing.另一处则简单设置三道关，分别由三名普通靖军把守。