For the audio material of the professional examination, you can go to Ximalaya and listen to "Xi Shuo", which talks about patent law and examination guidelines. The teacher's lecture is quite good. The key point is to see which subjects you need to review.
If you have video courses, go to video course platforms such as Intellectual Property Classroom, Tencent Classroom, and NetEase Cloud Classroom to watch and learn. Including watching some open courses, looking at some methodologies, and summarizing some knowledge. However, the efficiency of watching videos must be improved. After all, video courses are relatively long. You should cooperate with the teacher's explanation and then take notes yourself. Otherwise, you will have to go back and watch the video in the future, which will affect the review progress and review efficiency.