引起咽结合膜热的病原体是（）。

A.流感病毒

B.腺病毒

C.鼻病毒

D.链球菌

E.柯萨奇病毒

Americans who consider themselves ________ in the traditional sense do not usually hesitate to heap criticism in domestic matters over what they believe is oppressive or wasteful.

A．pedestrian

B．penchant

C．patriarch

D．patriotic