Can I choose two special group types?

Of course. Special group refers to intelligence. Immigrants who have impaired perception or sports, do not know Mandarin or are illiterate in their own country. When used in special groups, it can play a role that traditional mapping can't play, but it can't replace tradition. There are three special groups, including vulnerable groups, entitled groups and marginal groups, namely minors, the elderly, the disabled and the floating population. Academic circles generally divide special groups into two categories: physiological special groups and social special groups.