男，40岁。因剧烈腹痛2小时，急诊入院。人院时，心电图显示心房纤颤。查体，腹部平坦，较软，直肠指诊无黏液血便。下列对于确诊最有意义的检查是
E.钡剂灌肠造影

未分类题11 1．女，22岁。颈前肿物3个月。查体：右叶甲状腺可触及一质硬结节，直径2cm。同侧颈淋巴结可及2个，质中，活动。B型超声：甲状腺右叶一低回声实性团块。为明确肿物良恶性，下列各项检查，首先应选择A.同位素扫描B.血清降钙素测定C.针吸细胞学检查D.颈部软组织像E.右侧颈淋巴结活检

单项选择题灵敏度可以用于评价原子吸收分光光度法。 A、正确 B、错误

未分类题女，25岁。右肾结核行右肾切除，抗结核治疗半年多，尿痛缓解，但尿频加重，每晚7～8次，静脉尿路造影见左肾显影尚好，仅伴轻度肾积水及膀胱挛缩，尿常规白细胞0～2／HP，现治疗应选择E.膀胱造瘘术

未分类题女，45岁。四肢无力，站立不稳，进行性加重半年，无外伤史。查体：双下肢肌张力高，腱反射亢进。Hoffmann征(+)，Babinski征(+)。其诊断为E.混合型颈椎病

单项选择题Which of the underlined path in the following sentences is NOT used in the same way as “path” in the sentence “I knew we were on a new and unexpected path.” A、They may not take a direct path, but somehow they reach their dreams. B、It came right at me, but his love so overwhelmed me that I was incapable of moving out of its path. C、The path continues alongside the river for half a mile. D、The Tourist Board seems well on the path to achieving its new objective.