补体蛋白约占人体血清总蛋白的() ["A．2%","B．5%","C．10%","D．15%","E．25%"]
关于补体的理化特点，下列不正确的是() ["A．补体的性质不稳定","B．不受各种理化因素的影响","C．在0～10℃条件下活性只能保持3～4天","D．加热56℃30min灭活","E．标本保存应置于-20℃以下"]
补体活化的经典途径的主要激活物是() ["A．细菌脂多糖","B．酵母多糖","C．免疫复合物","D．肽聚糖","E．凝聚的IgA"]
补体活化的旁路途径的激活物，下列物质应除外的是() ["A．细菌内毒素","B．酵母多糖","C．葡聚糖","D．凝聚的IgA","E．甘露聚糖"]
能够激活补体替代途径的免疫球蛋白是() ["A．IgG1","B．IgG2","C．IgG3","D．凝集的IgA","E．IgM"]
试述"支架适合性"的内涵。
