淋病奈瑟菌的致病机制是通过()
A.菌毛
B.外膜蛋白
C.荚膜
D.IgA1蛋白酶
E.脂多糖、内毒素与补体、IgM等共同作用
参考答案:A, B, C, D, E
团结一致是企业提高竞争力的根本()。
A、依据
B、目标
C、策略
D、方针
()indicates the weight of the vessel and is,therefore,according to a well known principle of physics,equal to the weight of the water it displaces.
A.Gross tonnage
B.Net tonnage
C.Displacement tonnage
D.Deadweight tonnage