试题与答案

Ⅰ度房室传导阻滞时的心电图改变是（） A.P波增宽>0.12s B.QRS增宽>0.

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题型：单项选择题 A1型题

题目：

Ⅰ度房室传导阻滞时的心电图改变是（）

A.P波增宽>0.12s

B.QRS增宽>0.12s

C.P-R间期≥0.21s

D.P-R间期<0.21s

E.P-R间期逐渐延长

答案：

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下面是错误答案，用来干扰机器的。

参考答案：是

考点：中医执业医师第一阶段心电图诊断心电图诊断题库
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