单选题男性，36岁，因持续性血压升高伴阵发性加剧1年，诊断为嗜铬细胞瘤，行手术治疗。嗜铬细胞瘤切除后第1周血压仍高。下列原因中，可能性最小的是( )(2007年)
单选题中老年人呕血伴反复发作的、无明显规律的上腹痛并有厌食及消瘦者，应考虑
单选题肝细胞点状坏死的特点是A．肝细胞核碎裂为小点状的坏死B．破坏界板的坏死C．形成嗜酸性小体D．坏死灶仅累及几个肝细胞E．伴有严重脂肪变性的坏死
单选题患者，男，72岁，患有高血压、心绞痛2年，18小时前经股动脉途径行冠状动脉造影显示：升主动脉明显扩张，半小时前患者起床后突感胸闷、胸痛、呼吸困难、口唇发甘，血压60/35mmHg，颈静脉明显充盈，血气PaO
2
45mmHg，PaCO
2
35mmHg。
单选题关于硅肺的描述，正确的是A．直径大于5μm的硅尘致病性强B．硅酸导致巨噬细胞损伤C．硅结节内无免疫球蛋白D．纤维性结节是早期病变E．胸膜常无病变
单选题下述哪个是B淋巴细胞来源的恶性肿瘤A．多发性骨髓瘤B．霍奇金病C．蕈样霉菌病D．伯基特淋巴瘤E．恶性组织细胞增生症
单选题克隆(Crohn)病最常见的并发症是( )(1998年)
单选题对于老年人高血压病的特点，下列哪项不符合( )(1995年)
单选题下列各项对急性白血病临床表现描述不正确的是
单选题肉眼类型多为弥漫型的肺癌是( )(2008年)
单选题A．细动脉壁玻璃样变性B．细动脉壁纤维素样坏死C．小动脉内膜纤维化D．小血管内纤维素样血栓形成 (2010年)
单选题霍奇金淋巴瘤伴有结节性淋巴细胞增生，肿瘤细胞为爆米花细胞的组织学类型是
单选题有关消化性溃疡的形态特征以下叙述，错误的是
单选题亚急性细菌性心内膜炎最常见的病原体是
单选题心绞痛常发生手（ ）
单选题A．肝肾综合症B．自发性腹膜炎C．上消化道出血D．肝性脑病
单选题男性，60岁，2年来劳累后心慌、气短，并常出现夜间阵发性呼吸困难，不能平卧，发作时咳较多白色泡沫样痰。查体：心律齐，心率120次／分，双肺哮鸣音及肺底湿性啰音。诊断应首先考虑为
单选题When Marine Lt. Alan Zarracina finally did the splits after months of struggling with the difficult pose in yoga class, the limber women around him applauded. Zarracina, a 24-year-old Naval Academy graduate and flight student, admits he would have a hard time explaining the scene to other Marines. Each class ends with a chant for peace. Then, instructor Nancy La Nasa hands students incense sticks as a gift for their 90 minutes of back bends, shoulder stands and other challenging positions. Zarracina has tried to drag some of his military friends to class, but they make fun of him. "It's not necessarily considered masculine," he said. Still, the popular classes, based on ancient Hindu practices of meditation through controlled breathing, balancing and stretching, are catching on in military circles as a way to improve flexibility, balance and concentration. A former Navy SEAL told Zarracina about the class. The August edition of Fit Yoga, the nation's second-largest yoga magazine with a circulation of 100,000, features a photo of two Naval aviators doing yoga poses in full combat gear aboard an aircraft carrier. "At first it seemed a little shocking--soldiers practicing such a peaceful art," writes editor Rita Trieger. Upon closer inspection, she said, she noticed "a sense of inner calm" on the aviators' faces. "War is hell, and if yoga can help them find a little solace, that's good," said Trieger, a longtime New York yoga instructor. Retired Adm. Tom Steffens, who spent 34 years as a Navy SEAL and served as the director of the elite corps' training, regularly practices yoga at his home in Norfolk, Va. "Once in a while I'll sit in class, and everyone is a 20-something young lady with a 10-inch waist and here I am this old guy," he joked. Steffens, who said the stretching helped him eliminate the stiffness of a biceps injury after surgery, said the benefits of regular practice can be enormous. "The yoga cured all kinds of back pains," he said. "Being a SEAL, you beat up your body. " Yoga breathing exercises can help SEALs with their diving, and learning to control the body by remaining in unusual positions can help members stay in confined spaces for long periods, he said. "The ability to stay focused on something, whether on breathing or on the yoga practice, and not be drawn off course, that has a lot of connection to the military," he said. "In our SEAL basic training, there are many things that are yoga-like in nature. /
单选题女性，25岁，血压220／100mmHg，疑为肾血管性高血压，下列哪项对该诊断最有意义
单选题一位44岁男性患者，有发热、胸痛和心包摩擦音，下列哪种检查最有助于排除结核性心包炎