一、前言世界各地药物滥用者接受戒毒服务后复吸(relapse)的现象非常普遍。美国一些研究指出 ,接受戒毒服务人士 ,在离开治疗中心后首六个月仍能保持操守者 ,不足一半 (Hunt et al.1 971 ;Brown et al.1 989;Gossop et al.1 987,1 989;Stephens and Cottrell 1 972 )。目前很多 I. INTRODUCTION It is very common for drug abusers throughout the world to undergo relapse after receiving drug treatment services. A few studies in the United States point out that in the first six months after leaving a treatment center, those receiving drug treatment services can still hold as abuser less than half (Hunt et al., 1971; Brown et al., 1989; Gossop et al., 1987, ; Stephens and Cottrell 1 972). There are many now