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Extraction code: 1234 This question bank is compiled according to the requirements of Chongqing PLC Technology and Application Curriculum Standard and Chongqing PLC Technology and Application Teaching Quality Monitoring and Evaluation Essentials, combined with the educational and teaching characteristics of students in higher vocational colleges, including understanding various low-voltage appliances, identifying common typical electrical control circuits, designing and debugging PLC control circuits for motors, designing and debugging PLC control circuits for turntables, and designing PLC projects.