(来学网)感染性发热在发热病因中占
  • A.
    (来学网)30%~40%
  • B.
    (来学网)40%~50%
  • C.
    (来学网)50%-60%
  • D.
    (来学网)60%~70%
  • E.
    (来学网)70%~80%