关于急性左心衰竭的处理，以下哪一项最不恰当（）
A.半卧位
B.肌注吗啡
C.抬高下肢
D.呋塞米静注
E.多巴酚丁胺静脉泵注
参考答案：C
___________lessons were not difficult.
A．Our few first short English
B．Our first few short English
C．Our few first English short
D．Few our first English short
