—Can I help you，dear?

—Yeah,l don’t know　　　　　　　　a banana milk shake. Maybe you can teach me.

A．what to do

B．when to make

C．how to make

D．why to do

心电图表现为：心率200次／分，节律规则，QRS波群形态正常，突发突止见于（）

A.心房颤动

B.非阵发性房室交界区性心动过速

C.阵发性室上速

D.心房扑动

E.非持续性室速