呼吸节律不规整（）
A.肺部感染
B.肺气肿
C.心包积液
D.吗啡过量
E.糖尿病酮症酸中毒
参考答案：D
— Shirley, I know you ___________ a book about China, Have you finished it?
— Not yet. Maybe next year.
A． wrote
B． have written
C． are writing
D． will write
