单选题腰麻的绝对禁忌症是( )(2011年)

单选题膝关节处于半屈状态，此时突然将膝关节伸直，并伴有旋转动作，可能损伤

单选题骨与关节结核不适宜做病灶清除手术的情况是

单选题 一8岁女童，右小腿上段肿痛，发热3天，体温达39.8℃，经青霉素治疗3天无缓解来院，X线片检查右胫骨上段未见异常，右小腿上段内侧分层穿剌于胫骨骨膜下抽出混浊血性液1.5ml，涂片检查有脓细胞。以下哪项治疗是错误的? A、注意降温、补液、水电解质与酸碱平衡 B、立即应用大剂量广谱抗生素 C、立即局部减压和引流 D、患肢局部固定制动休息 E、体温下降后即可停用抗生素治疗

单选题 男性，44岁曾因肝内外胆管结石两次手术，在总胆管及肝内胆管取出胆色素及混合性结石，近一个月来，右上腹又呈阵发性绞痛，伴发烧，B型超声检查、肝内胆管扩张，并有残存结石，病人不同意手术治疗，要求药物治疗，下列哪项药物应为首选? A、CDCA(鹅去氧胆酸) B、UDCA(熊去氧胆酸) C、胆酸 D、复方桔油 E、复方辛酸甘油脂

单选题 Mekel憩室出血多是由于异位组织导致溃疡，最常见的异位组织是 ( ) A、异位胰腺 B、异位胃粘膜 C、异位十二指肠粘膜 D、异位结肠粘膜 E、异位甲状腺

单选题女，68岁，间歇性右上腹疼痛10年，疼痛向右肩背部放射，近1周再发右上腹痛，伴畏寒、发热。体查：T38．6℃，脉搏112次/分，血压84/45mmHg，右上腹可扪10cm×8cm包块，张力高，局部压痛、反跳痛明显，腹肌紧张。目前应如何治疗

单选题胃大部切除术治疗消化性溃疡的理论基础不包括

单选题最易与气性坏疽混淆的化脓性炎是

单选题腹膜炎继续存在，血压75／45mmHg，经积极抗休克治疗，仍不好转，此时最适宜的治疗是

单选题There's nothing simple about gun control, a tangle of legal, political and public-health issues complicated by cultural preferences and regional biases. Passions run high on all sides. Lifelong hunters whogrew up with firearms, urban victims of gun violence, Second Amendment scholars, NRA lobbyists, chiefs of police—they've all got cases to make and they make them well, often contentiously. For the past 15 years, much of the debate has centered on the effectiveness of the Brady Handgun Violence Prevention Act, the federal gun-control bill that was passed in 1993. Critics say the focus on law-abiding gun buyers doesn't address the real issue—bad guys who acquire their weapons illegally. Supporters say that the bill stops thousands of illegal gun purchases and deters crime and violence. Now medical research has come to the rescue, sifting through the data to figure out which legal measures work best to reduce firearm suicides and homicides. In a paper published in the May issue of the American Journal of Preventive Medicine, Steven Sumner, a third-year med student and Dr. Peter Layde, codirector of the Injury Research Center at the Medical College of Wisconsin, found that local background checks, which are optional and used by just a handful of states, were more effective than the federal background checks mandated by the Brady law. The report compared the homicide and suicide rates in states that perform only federal checks with states that do state-level checks and those that perform local-level checks. The local-level checks were associated with a 27 percent lower firearm suicide rate and a 22 percent lower homicide rate among adults 21 and older, the legal age to purchase a gun. Why are local checks so much better? "We hypothesize that it's due to access to additional information that's not available at the federal checks," says Layde, "particularly related to mental-health issues and domestic-violence issues." All 50 states use the National Instant Criminal Background Check System (NICS), the minimum required under Brady, while 17 states also perform state-level checks and 12 do additional local-level checks. "This is the first study that's looked at this issue," says Layde. "If the magnitude of impact we found were in fact to apply to all 50 states, you would expect a very substantial reduction in suicides and homicides linked to firearms, many thousands. " However, background checks can be both an administrative and a cost burden for strapped and stretched local authorities. There is another way to get the same results., improve the flow of local information to the NICS databases. "In an ideal world," says Layde, "you might not have to have the local agencies involved if you just reliably got all the data they had up to the federal level. /

单选题 胸部损伤致胸内进行性出血，下列哪项与其不符合? A、脉搏逐渐增快，血压持续下降 B、输血补液后，血压不回升或升高后又迅速下降 C、血红蛋白和红细胞压积重复测定，无明显降低 D、X线检查示胸膜腔阴影继续增大 E、胸腔闭式引流后引流量250ml/小时，持续3小时

单选题The terms college and university originally had very similar meanings. Only (1) the passing of centuries did "university" come to (2) an educational (3) composed of more than one college. During the Middle Ages students (4) the universities of Paris, Oxford, and Cambridge found (5) convenient to rent houses and share expenses (6) living in private apartments. By the 13th century these "houses of scholars" were becoming legally recognized corporate institutions. At Oxford the earliest of these (7) were University College, (8) in 1249 by William of Durham; Balliol College, founded by John Balliol in 1263; and Merton College, founded about 1264 by Walter de Merton. A similar (9) took place at Cambridge. In the United States the word college most commonly (10) to four-year institutions that (11) students from secondary schools and grant a bachelor's (12) after a general (13) of studies. A college may also be a school (14) specialized training that takes place after (15) the bachelor's degree--such as a college of law or medicine. Schools (16) in theological training may be called seminaries or schools instead of colleges. A university normally (17) of a group of colleges--one for the liberal arts or general studies and (18) for engineering, law, medicine, education, and (19) . Some of these colleges are for advanced study, (20) the college of liberal arts is the institution in which one earns a bachelor's degree.

单选题A．血C3正常B．血C3在疾病活动期下降C．血C3持续降低D．血C3在起病初期下降，8周内恢复正常

单选题胃大部切除术后吻合口溃疡为一严重的并发症，90%以上发生在（ ）

单选题下列关于破伤风梭菌特点的叙述，错误的是( )(2007年)

单选题急性阑尾炎病人，当腹痛尚未转移至右下腹前，在诊断上具有重要意义的是A．已出现发热B．已有白细胞显著升高C．已有脐区压痛及反跳痛D．脐区及有下腹均有压痛、反跳痛E．压痛已固定在右下腹

单选题A．溶血性链球菌B．厌氧性细菌C．两者均可D．两者均不可 (1999年)

单选题男性，50岁，上腹不适，食欲不振3个月。1个月来出现黄疸进行性加重，有体重减轻，全身明显黄染，肝未触及，深吸气时可触到肿大胆囊底部，无触痛。化验血胆红素15mg/dl，尿检胆红素阳性。最可能是A．肝炎B．胆石症C．胰头癌D．慢性胰腺炎E．肝癌

单选题A．狼疮性肾炎B．高尿酸血症肾病C．肾淀粉样变性D．糖尿病性肾病E．原发性肾小球肾炎