The appendix does not need to be copied. Appendices refer to materials that are not suitable for the text, but supplement or explain the contents of articles in papers, reports and other documents, such as questionnaires, data tables, pictures, charts and so on. Appendices are usually placed after the text and typeset separately from references.

Because the contents in the appendix are not original by the author, but from other sources, there is no need to repeat the contents in the appendix. However, it should be noted that the contents in the appendix must be legal, accurate, true and complete, and indicate the source of citation. In addition, the arrangement of the appendix should be as concise, standardized and consistent as possible for readers' reference.

In a word, the appendix is for the convenience of readers to consult the auxiliary materials used, and it does not need to be repeated, but the accuracy of its content and the labeling of its source still need attention.