在补体活化的经典途径的激活过程中,不被裂解的组分是() ["A.C2","B.C3","C.C4","D.C5","E.C6"]
属于冠内固位体的是()属于冠外固位体的是() ["A.卡环","B.套筒冠固位体","C.两者都是","D.两者都不是"]
补体活化的经典途径中,C4的激活剂是() ["A.C1q","B.C1r","C.C1s","D.C1qrs","E.C5"]
类风湿性关节炎患者,Ig以哪型增高为主() ["A.IgG","B.IgA","C.IgM","D.IgE","E.IgD"]
熔解中熔合金时,在合金表面加入熔煤的目的是()铸型烘烤的目的是() ["A.促进合金熔解","B.防止合金氧化,增加合金的流动性","C.两者都是","D.两者都不是"]
对义齿只具有固位作用,而无支持作用的卡环是()对义齿既具有固位作用,又具有支持作用的卡环是()