(来学网)根据Ⅰ、Ⅲ导联QRS主波方向估测心电轴、下列哪项不正确?()
  • A.
    (来学网)Ⅰ导联主波向上,Ⅲ导联主波向下为电轴左偏
  • B.
    (来学网)二者主波向上,电轴不偏
  • C.
    (来学网)二者主波向下,电轴显著右偏
  • D.
    (来学网)Ⅰ导联主波向下,Ⅲ导联主波向上,电轴右偏
  • E.
    (来学网)Ⅰ导联正负波代数和为0,Ⅲ导联主波向上,电轴为+90o
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