It has not been entered into the website of the Ministry of Education. Education website is a website that provides teaching, enrollment, school publicity and textbook enjoyment, mainly including schools and educational institutions. The obtained thesis certificate can not be found on the website of the Education Bureau, but it has not been entered into the website of the Ministry of Education. The thesis certificate was received by the author after publishing the thesis in an authoritative journal. The existence of thesis certificate means that the thesis has been hired and can be used to evaluate professional titles.