69.好發於兩歲以下嬰幼兒腸阻塞(intestinal obstruction)最常見的原因為:
(A)腸扭結(volvulus)
(B)腸套疊(intussusception)
(C)腸黏連(intestinal adhesion)
(D)憩室炎(diverticulitis)
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統計: A(27), B(846), C(12), D(12), E(0) #3279999
統計: A(27), B(846), C(12), D(12), E(0) #3279999