单项选择题
成年人P-R间期正常值是()
A.0.11~0.20s
B.0.12~0.20s
C.0.08~0.20s
D.0.10~0.20s
E.0.06~0.10s
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单项选择题
A.0.11~0.20s
B.0.12~0.20s
C.0.08~0.20s
D.0.10~0.20s
E.0.06~0.10s
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