临床病程 Disability Disability Time Tir Relapsing Remitting Secondary Progressive (following Relapsing Remitting Disability Disability Ti Ime Primary Progressive Progressⅳ e Relapsing ·复发-缓解型治疗效果最佳,而原发进展型最差 ◆临床病程 复发-缓解型治疗效果最佳，而原发进展型最差