成年人P－R间期正常值是A、0.11～0.20sB、0.12～0.20sC、0.08～0.20sD、0.10～0.20sE、0.06～0.10s

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

请帮忙给出正确答案和分析，谢谢！