Abandon traditional progress

Analysis of test questions: what hinders our progress is what is known, which embodies the dross that binds cultural thoughts in traditional culture. Option c meets the meaning of the question; ① Wrong, traditional culture can be divided into essence and dross; 4 has nothing to do with the meaning of the question.

Comments: this question is moderately difficult. Candidates should remember that the attitude towards traditional culture is to take its essence and discard its dross, and make the past serve the present; Develop on the basis of inheriting tradition.