单选题确诊乳房深部脓肿的根据是( )(1990年)

单选题麻醉中发现CO 2 蓄积，如排出速度过快，最可能出现的临床表现是( )(2010年)

单选题 在鉴别细菌性肝脓肿与阿米巴肝脓肿时，后者无下列表现 A、脓液呈棕褐色 B、中毒症状严重 C、起病较缓慢 D、反应性胸膜炎及胸腔积液 E、白细胞计数可增高

单选题下列哪项不是门静脉高压症的病理改变

单选题呼吸心跳停止后，最容易出现的继发性病理改变是

单选题最常见的后纵隔肿瘤是

单选题下列哪种疾病与胃癌发病无关A．萎缩性胃炎B．胃溃疡C．胃息肉D．胃平滑肌瘤E．胃大部切除术后残胃

单选题A．胆囊造口术B．胆囊切除术C．胆囊切除术，胆总管探查术D．胆囊空肠Roux－en－Y吻合术E．肝总管空肠Roux－en－Y吻合术

单选题科雷氏（Colles）骨折远段的典型移位是：

单选题30岁女性急性肾小管坏死少尿期患者，此患者是不可能出现下列哪种症状

单选题关于休克的治疗，下列不正确的措施是

单选题急性血源性骨髓炎经抗生素治疗一周后，全身及局部症状消失，下一步的治疗为

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A．饱餐或食油腻食物后右上腹持续性疼痛，严重有畏寒、高热B．腹痛、寒战高热和黄疸(Charcot三联征)C．腹痛、寒战高热、黄疸、休克和精神症状五联征D．突然发作的剑突下钻顶样绞痛，阵发性加重

单选题嵌顿疝和绞窄疝的主要区别是

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