20.實施大腸硫酸鋇攝影檢查時,如呈現錐形狹窄的"beak sign"時,患者可能有下列那一種疾病?
(A)ulcerative colitis
(B)polyps
(C)diverticula
(D)volvulus
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統計: A(79), B(67), C(83), D(137), E(0) #3492008
統計: A(79), B(67), C(83), D(137), E(0) #3492008