79.下列腸道的發育異常,何者最常見?
(A)閉鎖(atresia)
(B)重複(duplication)
(C)梅克耳氏憩室(Meckel diverticulum)
(D)臍膨出(omphalocele)
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統計: A(243), B(19), C(602), D(64), E(0) #671362
統計: A(243), B(19), C(602), D(64), E(0) #671362