Which is better, the customs clearance book or the integrated book?

Everything is fine. Xiaohongshu is mainly based on the exam-oriented system, with the classic real questions as the main line and six types of answer formulas as the core, comprehensively analyzes the real questions and assessment knowledge points over the years, and exclusively summarizes the high-scoring answer templates of different questions. The books of the all-in-one machine are mainly exercises and supporting videos, so they are all good.