符合右心室肥大的心电图表现是

A、电轴左偏
B、R_{v5<\/sub>十Sv1<\/sub> >4.O mV
C、RaVR<\/sub>>0.5mV
D、Rv1<\/sub>>1.OmV
E、V1<\/sub>导联QRS波群呈Rs型}