单选题男性，61岁，昨晚参加聚会后开始出现持续性腹痛、腹胀，放射到后背，伴恶心、呕吐。有胆囊结石病15年。查体：体温37．4℃，血压114/80mmHg，脉率104次/分，呼吸20次/分，Hb108次/分，上腹膨隆，全腹压痛，左上腹压痛严重，轻度肌紧张。WBC10×10 9 /L，N83％，血淀粉酶1770U/dL，尿淀粉酶2500U/dL。B超显示胆囊多发结石，总胆管宽0．7cm胰腺增大，边界不清，胰周有积液。

单选题晚期肝硬化最常见的死亡原因是

单选题乙胺丁醇为

单选题女性，30岁，转移性右下腹痛10小时，除考虑急性阑尾炎外，还应考虑

单选题A．贫血伴球形红细胞增多B．贫血伴靶形红细胞增多C．贫血伴红细胞碎片增多D．贫血伴红细胞CD55、CD59降低E．贫血伴血肌酐增高

单选题急性心肌梗死左心功能不全伴频发多源室性早搏，用利多卡因无效，应首选下列哪种药物治疗A．普鲁卡因胺B．普罗帕酮C．胺碘酮D．氨酰心胺E．维拉帕米

单选题病毒性肺炎的特征性病变是A．纤维素性肺炎B．化脓性肺炎C．出血性肺炎D．肺纤维化E．间质性肺炎

单选题生长激素与下列哪种激素有协同作用

单选题诊断变异型心绞痛时，下述哪项是错误的

单选题By 1,800 about half the population of Brazil had come from Africa. So had about half the population of Venezuela. So had a smaller but still large part of all the population of Trans-Atlantic republics, whether in North, Central or South Africa, or in the Caribbean islands. It was these men and women of African descent conquered the wilderness of the Americas, clearing and working in countless farms and plantations, founding and opening innumerable mines of iron or precious metals. Harsh and painful as it was, the overseas slave trade (like the not much less painful movement of millions of hungry and jobless men and women from Europe) laid the foundations of American republics. These Africans beyond the seas have their place in the story of Africa (the story of West Africa), for what they attempted and achieved was also a reflection of the strong and independent civilization from which they came. Consider, for example, the heroic and successful struggle for independence conducted by the slaves of the Caribbean land of St. Domingue. In 1789, at the moment of the French Revolution, this French colony in the Caribbean was probably the wealthiest colony in the world. Its tens of thousands of African slave-workers produced enormous quantities of sugar, whole European communities lived off the profits. When news of the Revolution in France reached St. Domingue, these slaves claimed their share in its ideals and benefits. They demanded their freedom. When denied this, they rose in revolt against their masters. In years of hard fighting against large armies sent by France, and afterwards against large armies sent by Britain, these men of St. Domingue won their freedom and founded the Republic of Haiti. Yet more than half these soldiers of freedom had made the "middle passage" across the Atlantic. More than half, in other words, had been born in Africa, had spent their childhood in Africa, and had learned in Africa their respect for freedom; while nearly all the rest were the children of parents or grandparents born in Africa. And they were led by Africans: by men of genius and courage such as Boukman, the unforgettable Toussaint Louverture, and Dessalines. Raised by Toussaint and his Africans, the banner of freedom across the Atlantic was carried from people to people. Many threw off their bondage. Large numbers of men of African origin fought in the armies that made the United States what they are today. It was a general of African descent, Antonio Maceo, who led the military struggle for Cuban independence against Spain in 1868. Like other men of vision, Maceo had no time for racism, for the false idea that one race of men is better or worse than any other. Some of the whites of Cuba disagreed with him. They were Spanish settlers who thought that white was going to be better than black even in an independent Cuba. One day Maceo was approached by a Spanish Cuban who suggested that the regiments of independence army should be divided into whites and non-whites. Maceo made him a reply which became famous in Cuba. "If you were not white," Maceo said to this man, "I would have you shot on the spot. But I do not wish to be accused of being racialist as you are, and so I let you go, but with the warning that I shall not be so patient another time. The revolution has no color./

单选题63岁，男性，有原发性高血压史，长期服用利血平降压，突然呕吐咖啡样胃内容物2小时，用以下哪种止血措施最适当

单选题下列符合菌血症的描述是

单选题A．闭塞性小动脉炎B．梅毒疹C．硬性下疳D．树胶样肿

单选题中毒型细菌性痢疾脑型的表现特点是

单选题在复治肺结核患者中仍可继续使用的是

单选题二度Ⅱ型及三度房室传导阻滞，阻滞部位在双束支，心室率缓慢，曾有Adams-Stokes综合征发作，治疗首选

单选题胰腺B细胞使血清中哪种消化道激素明显升高

单选题哪种阑尾炎最易导致阑尾穿孔

单选题A．漏出性胸水B．渗出性胸水C．肺癌伴胸腔积液D．结核性胸腔积液

单选题洋地黄治疗心力衰竭的机理，下列哪项不正确( )(2000年)