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[单选题]
心电轴左偏:()
A.Ⅰ的QRS主波向上,Ⅲ的QRS主波向上
B.Ⅰ的QRS主波向上,Ⅲ的QRS主波向下
C.Ⅰ的QRS主波向下,Ⅲ的QRS主波向上
D.Ⅰ的QRS主波向下,Ⅲ的QRS主波向下
E.Ⅰ的QRS波群加Ⅲ的QRS波群等于Ⅱ
查看答案
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A.Ⅰ的QRS主波向上,Ⅲ的QRS主波向上
B.Ⅰ的QRS主波向上,Ⅲ的QRS主波向下
C.Ⅰ的QRS主波向下,Ⅲ的QRS主波向上
D.Ⅰ的QRS主波向下,Ⅲ的QRS主波向下
E.Ⅰ的QRS波群加Ⅲ的QRS波群等于Ⅱ