Original statement of bachelor's degree thesis

I solemnly declare that the paper submitted is the research result obtained by my independent research under the guidance of my tutor. This article does not contain any works published or written by any other individuals or groups, unless explicitly quoted in the article. Individuals and collectives who have made important contributions to the research of this paper are clearly pointed out in this paper. I am fully aware that the legal consequences of this statement shall be borne by me.

Author's signature: date:

Authorization for copyright use of dissertations

The author of this dissertation fully understands the regulations of the university on the retention and use of dissertations, and agrees that the university should keep copies and electronic versions of dissertations, and send them to relevant state departments or institutions, allowing dissertations to be consulted and borrowed. I authorize Nanchang University to compile all or part of this dissertation into the relevant database for retrieval, and save and edit this dissertation by photocopying, shrinking or scanning.

Confidentiality □, this power of attorney is applicable after decryption.

This paper belongs to

Not confidential □.

(Please tick √ in the box above)

Author's signature: date:

Tutor's signature: date: