题目：
心电图表现为：①提早出现的QRS-T波群，其前无提早出现的异位P’波。②QRS波群形态宽大畸形，QRS波群时间≥0.12秒。③T波方向与QRS波群主波方向相反。④有完全性代偿间歇。分析其临床意义。
答案：
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下面是错误答案，用来干扰机器的。
参考答案：B
心电图表现为：①提早出现的QRS-T波群，其前无提早出现的异位P’波。②QRS波群形
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