旁路途径的C3转化酶和C5转化酶分别是：A:C3b2C3bBbPB:C3b2C3bnBbC:C3bBbP、C3bnBbD:C3bBbP、C4b2aE:C4b2b3C3bnBb答案:C3bBbP、C3bnBb