1. Experienced: Shi Lei is an experienced political tutor for postgraduate entrance examination. I have been engaged in political counseling for postgraduate entrance examination for many years, and have a certain research and understanding of political issues and examination trends over the years.

2. Team support: Shi Lei's R&D team, supported by a professional team, can have a keen insight and analysis of current political hotspots and exam trends, thus providing some support and reference for the paper.