良、恶性胃溃疡x线上如何鉴别?
外周血淋巴细胞计数可反映何种细胞的数量() ["A．B细胞","B．T细胞","C．SL","D．TH","E．CTL"]
男，55岁，呼吸困难，气喘，查体桶状胸体症，CT如图，最可能的诊断是() ["A．双上肺结核","B．左上肺结核，右上肺癌","C．间质性肺炎","D．右上肺癌并肺内转移","E．矽肺"]
如何检查食管静脉曲张?
梅尼埃病的临床特征为() ["A．上感后出现眩晕，无耳鸣和耳聋","B．眩晕发作时可伴随有意识障碍","C．发作性眩晕、耳鸣、耳聋和耳胀满感","D．头部处于某一位置则出现眩晕，重复检查眼震方向不变","E．眩晕伴有耳聋、面瘫，患耳有疱疹"]
食管癌有何X线表现?
