A total of 160 questionnaires were issued in this survey, and 150 were recovered, with a recovery rate of 93.8%, of which 145 were valid questionnaires, with an effective rate of 96.7%.
A total of 160 questionnaires were distributed and 150 were recovered, with a recovery rate of 93.8%, of which 145 were valid and 96.7% were effective.
A total of 160 questionnaires were distributed and 150 were recovered, with a recovery rate of 93.8%. 145 of them were effective, with an effective rate of 96.7%.<br>