Mathematics: spatial analytic geometry, integrals, calculus, linear algebra, probability and mathematical statistics
Physics: thermodynamics, fluctuations, optics, theoretical mechanics, kinematics
Chemistry: structure of matter, solutions, redox, organics
Circuits: Electric field, magnetic field, induction motor, synchronous motor
Analog electronics: amplification circuits, integrated arithmetic circuits, digital circuits
Laws and regulations: the People's Republic of China *** and the State Construction Law, safety law, bidding law, contract law, environmental protection law, quality and safety regulations
There are too many, less than half of them