单选题水在各肠段被吸收和随粪便排出的量，由多至少的排列顺序为

单选题溃疡性结肠炎患者腹泻的主要机制是

单选题A．吸烟 B．慢性支气管炎 C．α 1 -抗胰蛋白酶缺乏 D．瘢痕附近区 (2012年)

单选题 关于肠易激综合征哪项不正确? A、其机制与胃肠动力学及内脏感觉异常有关 B、精神心理因素是发病的重要因素 C、临床分为腹泻型、便秘型和腹泻便秘交替型 D、其复发常与饮食因素有关 E、该征与感染因素无关

单选题A．BT延长B．CT延长C．两者均是D．两者均否

单选题下列哪项是闭式胸膜腔引流术的禁忌症

单选题肺炎球菌肺炎用青霉素治疗，停药的特征是

单选题 男性。58岁，糖尿病10年，出现下列哪种并发症为糖尿病所特有 ( ) A、高血脂 B、冠心病 C、脑梗死 D、肾小球毛细血管间硬化症 E、下肢坏疽

单选题慢性肺心病肺动脉高压形成的最主要的原因是

单选题女性，30岁，反复发作脓血便，伴膝关节疼痛，多次细菌培养阴性，X线钡剂检查示乙状结肠袋消失，管壁平滑变硬，肠管缩短，肠腔狭窄，下列哪种诊断可能性大

单选题与维生素B 12 吸收有关的内因子是由胃黏膜中哪种细胞产生的(1993，1994)

单选题下列哪项是心力衰竭的基本病因A．人口老龄化B．急性心肌梗死急性期死亡率降低C．随年龄增加心肌细胞数减少D．原发性心肌舒缩功能障碍E．应用负性肌力作用的抗心律失常药物过多

单选题房性期前收缩与室性期前收缩最具鉴别意义的是

单选题Some oil companies plan to get rid of some of the pollution they produce by pumping it into rocks deep inside the Earth, where they say it will stay for thousands of years. Other people, though, aren't so sure this is advisable; environmental groups say that putting this pollution back into the Earth is a bad idea. When oil burns, it doesn't just produce heat: it also produces carbon dioxide. Carbon dioxide is a natural part of the air, but because people burn so much oil, there's too much carbon dioxide in the air. This extra carbon dioxide is pollution; some scientific studies show that carbon dioxide is one of the "greenhouse gases 'that is causing the Earth's temperature to rise. Environmentalists say that the oil companies' plans may not work. The oil companies say they are making sure that the gas will never escape, but environmentalists wonder how the oil companies can be so sure that the gas won' t seep into the air. They also point out that there's no way to check to make sure the gas isn't leaking. In addition, the environmentalists point out that the pumping costs money—for research and for equipment—that the oil companies should be spending on preventing pollution, rather than on just moving it someplace else. Another problem, say some people who are concerned about the Earth, is that if the oil companies find a cheap way to get rid of their pollution, they won' t look for new kinds of energy. These environmentalists say that energy companies should be researching ways to use hydrogen, wind power, and solar power instead of finding better ways to use oil. They argue that continuing to use oil means that we will still need to buy oil from other countries instead of producing our own cheap, clean energy. Environmentalists also say that burying pollution just pushes the problem into the future, rather than really solving it. They say that if the oil companies pump carbon dioxide into the rocks inside the Earth, it will be there for thousands of years, and that no one knows if this plan—even if it works—might turn into a pollution problem for all of us in the future. The oil companies insist that their plan is safe, and that putting the gas inside the Earth is a reasonable way to deal with it. They point out that there is a lot of room in the Earth for this extra gas, and that putting carbon dioxide inside the Earth means that the gas won' t be in the air, and if it' s not in the air, it won' t make the Earth warmer.

单选题A．寻常性间质性肺炎(UIP)B．脱屑性间质性肺炎(DIP)C．非特异性间质性肺炎(NSIP)D．急性间质性肺炎(AIP)E．隐源性机化性肺炎((COP)

单选题 典型肺炎链球菌肺炎体征描述，不正确的是 ( ) A、患侧呼吸运动减弱 B、患侧语颤减弱 C、患侧叩诊呈浊音 D、患侧听诊有支气管呼吸音、湿性啰音 E、累及胸膜时，可闻及胸膜摩擦音

单选题不依赖ACTH的Cushing综合征的病因是A．垂体微腺瘤B．肾上腺皮质癌C．小细胞肺癌D．胸腺癌

单选题女性，56岁，一周前上感伴咳嗽，三小时前突然略鲜血，量达200mL，无胸痛。既往有痰中带鲜血史。查体：体温37．3℃，血压正常，双肺叩清。X线胸片示双轨征及卷发样阴影，最可能的诊断为

单选题 关于结核性腹膜炎腹痛的特点，下列哪项除外? A、疼痛多位于脐周和下腹 B、早期腹痛比较明显，或可始终无疼痛 C、并发不完全性肠梗阻时，有阵发性腹痛 D、出现肌卫和板状强直 E、腹部压痛一般轻微

单选题 下列哪项不是成人腺垂体功能减退症的临床表现? A、体重减轻、食欲不振、恶心、呕吐、血压偏低 B、皮肤色素沉着，乳晕色素加深 C、怕冷、思睡、思维迟钝、精神淡漠 D、性欲减退、不育 E、低血糖发作