单选题A．肺扩张反射B．肺萎陷反射C．化学感受性反射D．呼吸肌本体感受性反射E．咳嗽反射

单选题对于十二指肠溃疡(DU)的描述，下列哪项不正确( )(2001年)

单选题在美国风湿病学会(ACR)1997年推荐的SLE分类标准中，不包括的是

单选题下列各项中是巨幼细胞贫血发病原因的是

单选题下列哪项不是巨大溃疡的临床特点

单选题肝硬化上消化道出血后，为预防肝昏迷的发生最需采取的措施为

单选题下列关于舒张性心衰的治疗，不正确的是

单选题男68岁，持续性心房颤动史10年，长期服用洋地黄、硫氮卓酮，10天前腹泻伴恶心，食欲下降。两天来出现阵发性头晕、眼黑、查体：BP100／70mmHg，双肺(-)，心律整，心率38次分，左下腹轻压痛、导致患者就诊最直接的病因是( )(2004年)

单选题出血坏死性胰腺炎时的Cullen征是指

单选题下列哪种情况下通气／血流比值升高?

单选题用硝酸甘油类药物使梗阻性肥厚型心肌病患者的症状加重的原因是A．扩张大动脉，降低了周围血压B．扩张了小静脉，左室射血分数增加C．扩张了小静脉，使回心血量减少D．冠状动脉收缩E．心肌氧耗量增加

单选题患者，女，30岁，间断上腹痛4年，今日腹痛变为胀痛，伴呕吐，量大，呕吐物为宿食。查体上腹部有振水音，转动体位，症状不能缓解。最可能的诊断是

单选题下述哪项检查对明确诊断肝性脑病最有帮助

单选题下列药物中，属于治疗支气管哮喘的β2受体激动剂是A．氨茶碱B．异丙托溴铵C．色甘酸钠D．沙丁胺醇

单选题The road to controlling population growth in the 20th century was paved with good intentions and unpleasant policies that did not work, a new book argues an historian who grew up as the youngest of eight children might well be expected to approach the question of whether the world is overpopulated from an unusual angle. Matthew Connelly, a professor at Columbia University, dedicates his study of those who thought the planet had too many people and tried to do something about it to his parents, "for having so many children". Yet, he assures the reader, it Was not his personal experience of large families that drew him to the subject. Mr. Connelly's mentor, Paul Kennedy of Yale University, believed it was necessary to look beyond great-power rivalries to understand the post-cold-war era. In 1994 the pair wrote an article for Atlantic Mouthly arguing that population growth in poor countries, increasing awareness of global economic inequality and the prospect of mass migration could lead to clashes between the West and "the rest". When, years later, Mr. Connelly began his own book on population growth, he still thought of the topic as a way to offer a broader understanding of world security. He ended up writing a very different-and angry-book, one about people who looked at the human race reproducing itself and saw what a gardener sees when looking at a prize plant: something to be encouraged to bloom in some places and pruned in others. As the world population soared, the population controllers came to believe they were fighting a war, and there would be collateral damage. Millions of devices were exported to poor countries although they were known to cause infections and sterility. "Perhaps the individual patient is expendable in the general scheme of things," said a participant at a conference on the devices organized in 1962 by the Population Council, a research institute founded by John [D] Rockefeller, "particularly if the infection she acquires is sterilizing but not lethal. " Furthermore, statistical estimates suggest that as much as 90% of the reason that women have families of a particular size is simply because that is the number of children they want. Where women gained education and rights, birth rates fell. As with reproduction itself, for people to become less fruitful, desire must precede performance.

单选题下述哪种慢性肺疾病与遗传性α1抗胰蛋白酶缺乏有关A．肺出血肾炎综合征B．全腺泡型肺气肿C．支气管扩张症D．慢性支气管炎E．肺间质纤维化

单选题碎片状坏死主要见于

单选题A．口服茶碱控释片 B．静脉输注甲泼尼松(甲基强的松龙)，雾化吸入β 2 受体激动剂 C．口服泼尼松(强的松)，短期使用(1周) D．吸入异丙肾上腺素 E．使用麻黄碱(麻黄素) 下列哮喘病人应采取哪项治疗措施

单选题关于急性心肌梗死并发心脏破裂，下列哪项不正确A．多见于起病1周以内B．可累及有心室C．心内膜下心肌梗死也可发生D．心动过缓E．多为室间隔破裂穿孔

单选题诊断Crohn病最有意义的病理改变是