转移性肝癌呈（） ["A."早出晚归"征B.环征C.双管征D."快显快出"征E.牛眼征"] 原发性肝癌呈（） [""早出晚归"征","环征","双管征",""快显快出"征","牛眼征"] 患者，男性，38岁。钡餐示食管壁张力降低，蠕动减弱，钡剂排空延迟，并在食管下段见到串珠状充盈缺损影，应首先考虑（） ["食管下段黏膜下平滑肌瘤","食管下端静脉曲张","贲门痉挛","反流性食管炎","食管癌"] 脑膜瘤多为（） ["不规则环形伴壁结节强化","环形无壁结节强化","壁结节小，囊壁无强化","均匀一致强化","不强化"] Ⅳ级星形细胞瘤多为（） ["不规则环形伴壁结节强化","环形无壁结节强化","壁结节小，囊壁无强化","均匀一致强化","不强化"] 良性胃溃疡最好发于（）