填空题 Different from the biomedical model，the biopsychosocial perspective takes biological and psychological factorsinto consideration，including physical conditions，beliefs and values，and（）.

填空题 The success of health communication interventions depends on many factors，including the sustainability of a program and the development of communication tools and（）.

填空题 There are three key aspects of transactional communication：（），multiple levels of meaning，and the importanceof context and culture.