(来学网)成年人P-R间期正常值是
  • A.
    (来学网)0.11～0.20s
  • B.
    (来学网)0.12～0.20s
  • C.
    (来学网)0.08～0.20s
  • D.
    (来学网)0.10～0.20s
  • E.
    (来学网)0.06～0.10s
正确答案：
B
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