(来学网)上消化道出血为多大量时可以表现出周围循环衰竭
  • A.
    (来学网)500ml
  • B.
    (来学网)750ml
  • C.
    (来学网)1000ml
  • D.
    (来学网)1250ml
  • E.
    (来学网)1500ml