1. originality: the content of the opening report must be original, and the research results or opinions of others cannot be copied. This is the primary standard and the most basic requirement for duplicate checking.

2. Quotation specification: If the research results or opinions of others are quoted in the opening report, they must be quoted in the prescribed format, otherwise it will be regarded as plagiarism.

3. Duplicate checking software: Now most schools will use special duplicate checking software to check students' opening reports, which can detect duplicate contents in papers, including directly copied words and rewritten words.

4. Duplicate checking rate: Generally speaking, the duplicate checking rate of the initial report cannot exceed 30%. If it exceeds this ratio, it may be considered plagiarism and needs to be revised.

5. Scope of duplicate checking: The scope of duplicate checking usually includes all the contents of the opening report, including title, abstract, text, references, etc.

6. Time for duplicate checking: The time for duplicate checking is generally determined by the school or tutor before submitting the opening report.

7. Handling after duplicate checking: If the duplicate checking results show plagiarism, students need to deal with it according to the regulations of the school. Possible solutions include revising the opening report and accepting the punishment of the school.

Generally speaking, the criteria and requirements for duplicate checking in the thesis opening report are mainly to ensure its originality and avoid copying other people's research results or opinions. At the same time, we should also abide by the relevant regulations of the school or tutor on duplicate checking to ensure the quality of the opening report.