Really. Hi learning network's first-class training course for builders has a good reputation in the industry. The course design covers all subjects of the first-level constructor's examination, such as engineering regulations, project management, engineering economy, construction engineering, municipal engineering and electromechanical engineering. Hi Learning Network also invited Chen Yin, Xiao Guoxiang, Zhu Hong, Xu Rong and many other top teachers in the industry to teach online.