(The subjects of this course are based on computer grade examination and communication professional examination. Gradually deepen hands-on teaching, so that students can easily master the core knowledge of the exam. The course includes the introduction of the examination grade, the interpretation of the examination outline, the strengthening of the course part, the graded examination question bank, as well as the codes and codes used in the course. Information, etc. The courses are also aimed at a wide range of people, so the courses in the two directions are released together, and students can study together or study targeted according to their majors or interests.)