What are the contents of the immigrant visa interview at the US Consulate in Guangzhou?

Details of the immigrant visa interview at the US Consulate in Guangzhou are as follows:

Your relationship with the applicant.

When and what visa did the applicant arrive in the United States?

Basic background of the applicant (work, marriage)

Show your contact photos with the applicant.

What do you do?

Why did you come to America?

The various forms in the interview appointment file bag are as follows:

China passport?

Two visa photos?

Notarial certificate of birth certificate?

Notarial certificate of marital status. If you are divorced, you must provide the divorce certificate of your previous marriage. If a child who has been married before applies for a visa, documents for obtaining custody of the child need to be provided at the time of divorce. ?

Notarial certificate with no criminal record. Every visa applicant who has reached the age of 16 must provide a notarial certificate of no criminal record issued by the local municipal notary office who has lived at least 6 months after 16. If the applicant has lived in another country for more than one year, he should also provide a criminal record issued by that country.