下列哪项不引起心悸 ( )
A．快速心室率的心房颤动B．频发室性期前收缩C．完全性左束支传导阻滞D．饮用浓咖啡E．甲状腺功能亢进
参考答案：C
252. My little brother _________ the Young Pioneer Team last year.
A．took part in
B．attended
C．joined
D．Accepted
职分田
