A teacher named Jiangshan is an expert in bid evaluation and a senior engineer. Teacher Jiangshan is an expert in bid evaluation, a senior engineer, a soft test (project management division of Information System, a project management engineer of system integration), a first-class builder, a second-class builder, a cost engineer, a supervision engineer and a consulting engineer. Participated in the management of many large and complex projects, and engaged in soft examination and builder training for 9 years. With rich experience in project management and training, the lectures are easy to understand, helping tens of thousands of students to clear customs at one time.