完全性左束支传导阻滞的心电图特征有( )

A、室上性激动
B、QRS≥O.12秒
C、V[img=~\/QImg\/2013-06-26-16-37-46\/image001.gif]、v[img=~\/QImg\/2013-06-26-16-37-46\/image007.gif]呈QS型
D、v[img=~\/QImg\/2013-06-26-16-37-46\/image005.gif]、V[img=~\/QImg\/2013-06-26-16-37-46\/image006.gif]呈R波且宽大
E、继发性ST-T改变