What are they doing? [ ]
A. She is singing.
B. He is crying.
C. They are talking.
答案:C
心电图示心率180次/分,QRS波时间为0.10s,R-R绝对整齐,心电图诊断是()。
A.窦性心动过速
B.阵发性室上性心动过速
C.阵发性室性心动过速
D.心房纤颤
E.心室颤动
腭腺属于
A.纯浆液性腺 B.纯粘液性腺 C.混合性腺 D.以浆液性腺泡为主的混合性腺 E.以粘液性腺泡为主的湿合性腺