A simple way to write by yourself is to collect several papers from the Internet and then re-form a new document for each plagiarized part. If there are any changes, words and sentences are still in progress, you don't have to change this meaning.

The official website, Bureau of Statistics, is the official website for statistics and data release of national departments. Official website, the National Bureau of Statistics, has basically collected macro data information from all walks of life in China, and the authenticity and accuracy of the data are authoritative.

China HowNet is the largest database in China and the largest Chinese database in the world. HowNet is a very important tool for information and data query, whether writing papers or investigating reports.

Baidu Library is an online knowledge base established by Baidu. Baidu Library uploads Baidu papers and related documents through Baidu users. After Baidu's approval, it can be directly used for users to search and query.