1, "How to fill in the column of major studied": as long as it is the same as the major on my diploma.

If you forget your major, just fill in "graduation major" on your diploma. Because "the basic contents of graduation certificate are name, gender, date of birth, graduation time, educational system, graduation major, issuance time, electronic registration number, school seal, school seal, principal seal, etc."

3. If it is a high school, just fill in "high school education". Specialty refers to: specializing in a certain kind of study or occupation. Professional knowledge. Academic categories of institutions of higher learning or secondary specialized schools. All business parts of the industrial sector. Refers to the scope of action of a substance or operation.