40.造成產後出血的原因,下列何者最常見?
(A)子宮收縮不佳(atony)
(B)羊水栓塞(amniotic fluid embolism)
(C)胎盤滯留(retained placenta)
(D)生殖道撕裂傷(injury to birth canal)
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統計: A(203), B(0), C(7), D(37), E(0) #1843631
統計: A(203), B(0), C(7), D(37), E(0) #1843631