Hearing the news, I was _________ excited _______ say a word

A．very; too

B．enough; too

C．so; that

D．too; to

急性肾衰竭可分为肾前性、肾性和肾后性三类，引起肾后性的常见原因有（）。

A.挤压伤

B.药物中毒

C.严重休克

D.脓毒症

E.双侧输尿管结石