试题与答案

法洛四联征其青紫的轻重和出现的早晚取决于 A.室间隔缺损的大小 B.肺动脉狭窄的程度

题型:单项选择题

题目:

法洛四联征其青紫的轻重和出现的早晚取决于

A.室间隔缺损的大小
B.肺动脉狭窄的程度
C.主动脉骑跨的程度
D.有无右心室明显增大
E.以上全是

答案:

参考答案:B

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