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【单选题】
关于卵巢畸胎瘤的CT表现，下列哪项不正确（）A.
表现为囊性或囊实性肿块
B.
囊壁厚薄不均，密度不均匀
C.
内部可见钙化密度、脂肪密度及软组织密度
D.
脂-液分层或脂-液平面是其必有的特征
E.
有时可见牙齿或骨组织
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A.
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B.
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C.
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D.
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A.
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B.
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C.
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D.
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