[名词解释] 细胞毒T淋巴细胞抗原-4(cytotoxic T lymphocyte antigen-4，CTLA-4)

免疫磁珠 免疫应答(immune response) E-selectin 淋巴细胞功能相关抗原-2(lymphocyte function associateda ntigen，LFA-2) 下列哪项不是支架变形的原因() ["A．支架蜡型变形","B．打磨引起变形","C．包埋料热膨胀不足","D．合金线收缩率过大","E．包埋材料透气性差"] 细胞毒T淋巴细胞抗原-4(cytotoxic T lymphocyte antigen-4，CTLA-4)