单选题晕厥易发生于下列哪种瓣膜病

单选题糖尿病最易发生的感染是（ ）

单选题A．肺性脑病B．脑血管疾病C．右心衰竭D．肾衰竭

单选题A．肾小球微小病变B．系膜增生性IgA肾小球肾炎C．膜性肾病D．毛细血管内增生性肾小球肾炎E．系膜毛细血管性肾小球肾炎

单选题咯血伴肾衰竭最常见于下述何种情况

单选题系统性红斑狼疮的心脏病变为

单选题小叶性肺炎一般不导致

单选题大小肺泡稳定性的维持，有赖于肺表面活性物质在

单选题下述哪项不属于脑膜刺激征

单选题Surprisingly enough, modern historians have rarely interested themselves in the history of the American South in the period before the South began to become self-consciously and distinctively " Southern"—the decades after 1815. Consequently, the cultural history of Britain's North American empire in the seventeenth and eighteenth centuries has been written almost as if the Southern colonies had never existed. The American culture that emerged during the Colonial and Revolutionary eras has been depicted as having been simply an extension of New England Puritan culture. However, Professor Davis has recently argued that the South stood apart from the rest of American society during this early period, following its own unique pattern of cultural development. The case for Southern distinctiveness rests_ upon two related premises: first, that the cultural similarities among the five Southern colonies were far more impressive than the differences, and second, that what made those colonies alike also made them different from the other colonies. The first, for which Davis offers an enormous amount of evidence, can be accepted without major recitations, the second is far more problematic. What makes the second premise problematic is the use of the Puritan colonies as a basis for comparison. Quite properly,Davis decries the excessive influence ascribed by historians to the Puritans in the formation of American culture. Yet Davis inadvertently adds weight to such ascriptions by using the Puritans as the standard against which to assess the achievements and contributions of Southern colonials. Throughout, Davis focuses on the important and undeniable differences between the Southern and Puritan colonies in motives for and patterns of early settlement, in attitudes toward nature and Native Americans, and in the degree of receptivity to metropolitan cultural influences. However, recent scholarship has strongly suggested that those aspects of early New England culture that seem to have been most distinctly Puritan, such as the strong religious orientation and the communal impulse, were not even typical of New England as a whole, but were largely confined to the two colonies of Massachusetts and Connecticut. Thus, what in contrast to the Puritan colonies appears to Davis to be peculiarly Southern-acquisitiveness. A strong interest in polities and the law, and a tendency to cultivate metropolitan cultural models were not only more typically English than the cultural patterns exhibited by Puritan Massachusetts and Connecticut, but also almost certainly characteristic of most other early modern British colonies from Barbados north to Rhode Island and New Hampshire. Within the larger framework of American colonial life, then, not the Southern but the Puritan colonies appear to have been distinctive, and even they seem to have been rapidly assimilating to the dominant cultural patterns by the last Colonial period.

单选题输血不是作为主要传播途径的病毒性疾病是

单选题慢性肝炎时出现的毛玻璃样肝细胞，其电镜下主要病理特点是

单选题A．吲哚美辛B．强的松C．氯喹D．甲氨喋呤E．环磷酰胺 与上述药物相关的主要不良反应是

单选题下列哪种毒物中毒首选血液透析

单选题 李x，女，11岁，学生，因急起发热头痛、呕吐2天，2001年3月10日下午入院。患者于3月8日突然出现畏寒，发热，当地测体温40℃，头痛，呕吐4次，为胃内容物，喷射状。次日仍发热，头痛更剧，频繁呕吐，精神萎靡。入院检查：血压13/7kPa，体温40.5℃，脉搏122/分，呼吸32/分，神清，胸腹四肢均有出血点及瘀斑，压之不褪色，颈有抵抗感，心肺未发现病征，腹软，肝脾未扪及，克布征(＋)。外周血白细胞18.4×10的9次方/L，中性粒细胞0.86，淋巴细胞0.14，大小便常规检查无异常。本病例最可能的诊断是： A、金黄色葡萄球菌所致化脓性脑膜炎 B、大肠杆菌所致化脓性脑膜炎 C、流行性脑脊髓膜炎 D、败血症 E、流感嗜血杆菌脑膜炎

单选题可以直接测量病毒体大小的方法是

单选题患者女性，18岁，转移性右下腹痛1天，伴恶心、呕吐。急诊入院，查体：体温38.5℃，血液检查：中性粒细胞18 × 10 9 ／L，右下腹压痛、反跳痛明显。患者的疾病诊断最可能是

单选题男性，39岁，反复发作性头痛、心悸、出汗3年，再发1小时急诊入院。检查发现面色苍白，血压200／130mmHg，心率136次／分。

单选题下属哪一种有机磷中毒忌用碳酸氢钠溶液洗胃

单选题A．胃黏膜萎缩B．恶性贫血C．两者皆有D．两者皆无