When writing articles and academic papers, the documents cited by yourself can be deleted appropriately. When the length of one's article is too long, or the contents of some documents are inconsistent with the contents of one's article, you can make appropriate deletion while keeping the meaning of the content unchanged, so as to achieve certain results. However, if a lot of information and contents are deleted and some key and important contents are removed when deleting a document, which leads to the content of the deleted document being inconsistent with the original intention, this practice is not acceptable and should be deleted relative to the original text.
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