患儿女，7岁，来自我国西南。先有精神萎靡、嗜睡、纳呆，经1～2周后出现呼吸急促，颜面水肿。心左界扩大，心率160次／分，律齐，第一心音低钝，并有奔马律，肝肋下4cm，轻压痛。心电图示低电压，ST段压低2mm，T波低平，X线示心脏呈球形扩大，临床诊断为克山病。其发作的主要临床特点为

A.心源性休克

B.慢性充血性心力衰竭

C.急性充血性心力衰竭

D.心源性脑缺氧

E.急性肺水肿

Ceorge Orwell,              was Eric Arthur. Wrote many political novels and essays.      [ ]

A. the real name      

B. what his real name      

C. his real name      

D. whose real name