How does it work? --0-一一--一一--一一-0-一一--一一--一一--一一--一一- -一一--一一--一一-- MHC protein Antigen APC (亚) Peptide ()( 感 T-cell B-cell 〔v) Activated T-cell 。Lymphokines Activated B-cell (plasma cell) 3 (v) CEC 2001 Artificial Immune SystemsCEC 2001 Artificial Immune Systems How does it work?