—Mr. Green, _____ you _____ Three Lanes and Seven Alleys(三坊七巷)last

Sunday?  

—No,but I'll visit them next week.     [ ]

A. will; go to                          

B. have; been to      

C. did; go  to                              

D. have; gone  to

室性心动过速心电图诊断的最主要依据是 ( )。

A．QRS波群形态宽大畸形

B．心室率100～200次/分

C．心室律稍微不规则

D．心室夺获和室性融合波

E．房室分离，房率，室率