Is there a problem with three-year-old immigrants' two-calendar status?

No, "three years" refers to age, length of service and party age; "Two calendars" refers to academic qualifications and work experience; "One identity" refers to identity. According to relevant information, there is no problem with the policy. This is official policy. That is, by transferring to another school or a registered permanent residence, I will take exams in areas with relatively low college entrance examination scores and high admission rate to complete my studies. "College Entrance Examination Migration" is a special phenomenon in China's higher education.