单选题体内CO 2 分压最高的部位是( )(2011年)

单选题患者，女，45岁，近2年来反复出现多发口腔溃疡，两个月前劳累后出现左膝关节肿痛，双下肢皮肤结节红斑伴疼痛，一周前突发右眼视物不清，化验ESR增快，ANA阴性，最可能的诊断是

单选题患者，女，50岁，慢性肾炎史10余年，经中西医结合治疗病情稳定，但近1年来逐渐加重，食欲下降，贫血，化验血肌酐已进入尿毒症期，这时血肌酐的水平是

单选题对口服中毒患者的处理中正确的是

单选题肝肾综合征血流动力学特征是

单选题男性，60岁，有慢性咳喘史35年，多次血气检查PaCO2在55～60mmHg。近来因着凉后症状加重，入院时发绀明显。血气分析PaCO286mmHg，PaO250mmHg，拟行机械通气，其治疗目标是A．使PaCO2降低至完全正常B．使PaCO2降低55～60mmHgC．使PaCO2降低至低于正常D．使PaCO2维持现状E．使PaO2恢复正常

单选题支气管炎和肺炎的鉴别，有意义的是

单选题女性，30岁。近3个月来出现低热、消瘦、多关节疼痛。查体可见双下肢轻度可凹性水肿。尿常规检查：尿蛋白(++)，红细胞10～20个／HP。pANcA阳性，余自身抗体均阴性。肾穿刺病理显示：微小动脉有坏死性炎症性改变，无免疫复合物沉着。肾血管造影未发现血管狭窄。该患者最可能的诊断为

单选题In the early days of the internet, the idea that it represented an entirely new and separate realm, distinct from the real world, was seized upon by both advocates and critics of the new technology. Advocates liked the idea that the virtual world was a placeless datasphere, liberated from constraints and restrictions of the real world, and an opportunity for a fresh start. For instance, John Perry Barlow, an internet activist, issued the "Declaration of the Independence of Cyberspace" in February 1996. He thundered, "Governments of the industrial world, I come from cyberspace, the new home of mind. Cyberspace does not lie within your borders. We are creating a world that all may enter without privilege or prejudice accorded by race, economic power, military force, or station of birth." Where Mr. Barlow and other cyber-Utopians found the separation between the real and virtual worlds exciting, however, critics regarded it as a cause for concern. They worried that people were spending too much time online, communicating with people they had never even met in person in chat rooms, virtual game worlds and, more recently, on social-networking sites such as MySpace and Facebook. A study carried out by the Stanford Institute for the Quantitative Study of Society in 2000, for example, found that heavy internet users spent less time talking to friends and family, and warned that the internet could be "the ultimate isolating technology". Both groups were wrong, of course. The internet has not turned out to be a thing apart. Unpleasant aspects of the real world, such as taxes, censorship, crime and fraud are now features of the virtual world, too. Garners who make real money selling swords, gold and other items in virtual game worlds may now find that the tax man wants to know about it. Designers of virtual objects in Second Life, an online virtual world, are resorting to real-world lawsuits in order to protect their intellectual property. At the same time, however, some of the most exciting uses of the internet rely on coupling it with the real world. Social networking allows people to stay in touch with their friends online, and plan social activities in the real world. The distinction between online and offline chatter ceases to matter. Or consider Google Earth, which puts satellite images of the whole world on your desktop and allows users to link online data with specific physical locations. All these approaches treat the internet as an extension or an attachment to the physical world, not a separate space. Rather than seeing the real and virtual realms as distinct and conflicting, in short, it makes sense to see them as complementary and connected. The resulting fusion is not what the Utopians or the critics foresaw, but it suits the rest of us just fine.

单选题男性患者，58岁，诊断2型糖尿病3年，饮食控制、运动并口服二甲双胍0.5g，Tid治疗，半年来空腹血糖增高至9～10mmoL／L，身高167cm，体重60kg，应加用的降糖药物是

单选题隐性肝性脑病（亚临床性肝性脑病）病人的临床特点是

单选题抗角蛋白抗体谱的检查有助于类风湿关节炎的早期诊断。下列选项中，属于此类抗体的是A．抗核周因子抗体B．抗核抗体C．抗RNP抗体D．抗组织细胞抗体

单选题A．血小板增加 B．纤维蛋白原降低C．PT缩短 D．3P试验(+)E．Hb降低

单选题垂体性发现一6.8min×7.5mm大小腺瘤

单选题A．减轻心脏前负荷B．减轻心脏后负荷C．两者均减轻D．两者均不减轻 (1990年)

单选题男性，78岁，高血压10年，平时血压多为150～190／70～85mmHg，有关这类患者的临床特点，哪项不正确

单选题下列哪种情况应视为新近感染的活动性结核病，需给予治疗A．3岁以下，结核菌素反应阳性B．城市居民，成年，结核菌素反应阳性C．60岁以上，结核菌素反应阳性D．青壮年发热两周，结核菌素反应阳性E．以上都不是

单选题哪种癌在胃幽门部一般不会出现( )(1990年)

单选题A．血管通透性增加B．中性白细胞趋化作用C．两者皆有D．两者皆无 (1993年)

单选题急进型高血压病病人，下列哪种器官的功能损害最为严重( )(1993年)