简述何谓生物反馈疗法。
参考答案：
生物反馈疗法指的是通过现代生物科学仪器，训练患者学习利用反馈信息调整自身的心理、生理活动，使疾病得到康复治疗。
________ what would happen, none of them could find a way out. [ ]
A. Left wondering
B. Having left wondering
C. Leaving to wonder
D. Having left to wonder
简述品牌策划。
