They are different ages. A total of 26 questionnaires were recovered. Among them, 25 valid questionnaires and 1 invalid questionnaire, the effective rate was 96.2%.
They are of different ages. A total of 26 questionnaires were collected from the survey. Among them, 25 valid questionnaires and 1 invalid questionnaire, the validity rate was 96.2%.
They are different ages. A total of 26 questionnaires were collected. Among them, there were 25 valid questionnaires and 1 invalid questionnaire, the effective rate was 96.2%.<br>