单选题A．压疮B．尿道损伤C．损伤性骨化D．缺血性肌挛缩

单选题下列哪项疾病不适合行胆囊切除术A．胆囊结石B．胆总管结石C．胆囊癌D．慢性胆囊炎，胆囊积水E．胆囊息肉

单选题患者，男性，26岁，24年来尿频、尿急、尿痛，有时尿混浊，伴终末血尿，一般抗生素无效。尿液检查：脓球40～50个／HP，红细胞20～30个／HP，蛋白(＋)。最适宜的检查方法是

单选题On the eve of global warming negotiations, scientists from several Western nations are clamoring for a crash program to develop clean energy that would rival the Manhattan Project and the Apollo mission to the moon. Writing in Thursday's issue of the journal Nature, scientists from North America and Europe predicted that global warming will soon become the environmental equivalent of the Cold War as the world's increasing reliance on fossil fuels releases more carbon dioxide and other heattrapping pollutants into the atmosphere. The 11 scientists urged negotiators at environmental talks scheduled to begin Nov. 2 in Buenos Aires, Argentina, to push for a mobilization of scientific resources to develop alternative forms of energy, such as solar, wind and nuclear power. "Developing and commercializing carbon-flee power technologies by the mid-21st century could require efforts, perhaps international, pursued with the urgency of the Manhattan Project or the Apollo space program," said Martin Hoffert, a physicist at New York University. Only 20% or less of today's energy use comes from carbon-free sources. The Nature paper is unusual because it contains broad policy recommendations. Normally, the journal publishes straightforward scientific studies. Last year, governments meeting in Kyoto, Japan, agreed to emission reductions by the United States, Japan, the 15-nation European Union and 21 other industrial nations. The nations are to cut their output of carbon dioxide and other greenhouse gases to 5% below their 1990 levels by 2012. This year, negotiators for 166 nations are meeting to determine how each country will achieve the reductions. To some, rising annual average temperatures in the 1990s amount to early proof that global warming has arrived and that the current treaty won't protect nations from climatic upheaval during the 21st century. Some scientists said global warming is inevitable and no amount of effort—not even a crash program—will prevent it. "We will experience a substantial amount of further climate change even if we make huge cuts in emissions," said Martin Parry of University College in London. Others said there are many ways of reducing global warming without mobilizing scientists worldwide. Energy conservation and efficiency, such as greater use of cleaner-burning natural gas and nuclear power, might be a cheaper solution, they say. Smokestack and tailpipe controls, as well as planting trees, can reduce pollution, too. Countries can also provide utilities with financial incentives to invest in experimental technologies. Even optimists at the meeting agreed that demand for crude oil will outstrip production by 2020 and that worldwide reserves will be exhausted by 2100. Oil shortages and higher prices will make the world a more dangerous place, they warned.

单选题多器官功能障碍综合征（MODS）的常见病因是

单选题由肠壁一部分构成了疝内容的疝，称为A．滑疝B．Richter疝C．Lirrte疝D．直疝E．股疝

单选题多饮水可预防结石，其机制是

单选题A．胃左动脉B．胃右动脉C．胃短动脉D．胃网膜左动脉E．胃网膜右动脉

单选题患者男性，34岁，一周前曾感冒低热两天，近三天来发现下肢浮肿，血压20/12kPa(150/90mmHg)，尿蛋白(+++)，尿沉渣镜检红细胞20～40个/高倍视野，颗粒管型偶见，血红蛋白98g/IJ，A/G2.2/2.4，最可能的临床诊断为A．急性肾炎B．慢性肾炎，急性发作C．慢性肾盂肾炎，急性发作D．隐匿性肾炎E．狼疮性肾炎

单选题A、化脓性脓胸B、单纯结核性脓胸C、特异病原性脓胸D、腐败性脓胸E、慢性脓胸

单选题A．立即封盖伤口，包扎固定B．清创缝合伤口，并做闭式引流C．气管内插管，辅助呼吸D．气管切开，充分供氧

单选题嵌顿疝和绞窄疝的主要区别是

单选题烧伤病人，防治低血容量休克时，补液量调节的简便而可靠的临床指标是

单选题患者，男性，26岁，24年来尿频、尿急、尿痛，有时尿混浊，伴终末血尿，一般抗生素无效。尿液检查：脓球40～50个／HP，红细胞20～30个／HP，蛋白(＋)。该病人经检查，诊断“左肾结核”，住院后体检：双肾未触及，肾区无压痛及叩击痛。最可能的发现是

单选题诊断骨髓瘤时，下列哪项是不恰当的

单选题A．局部麻醉 B．骶管阻滞C．腰麻 D．硬膜外麻醉E．气管插管全麻

单选题有关伤寒杆菌性骨髓炎的诊断哪项是不恰当的

单选题有关肾皮质多发性脓肿，下列哪项说法是不恰当的

单选题A．脾腔分流术B．脾肾分流术C．门腔分流术D．肠系膜上、下腔静脉分流术

单选题不宜用高压蒸气灭菌的是