单选题下列不属于化脓性炎的是

单选题有利于炎症痊愈的因素是

单选题不符合大肠癌发生发展的描述是

单选题符合十二指肠溃疡的描述是

单选题A．Ewart征B．心包摩擦音C．心音低钝D．奇脉E．心包叩击音

单选题第一心音减弱最常见于下列哪种情况

单选题对慢性阻塞性肺疾病的诊断和病情严重程度的判断最有意义的检查是

单选题结核病的特征性病变是

单选题同肝细胞癌的发生关系不密切的是

单选题某一诊断为冠心病、急性下壁心肌梗死的患者，突发晕厥约几分钟，最可能的诊断为

单选题哪项急性风湿病变伴发心肌炎的几率最低

单选题A．促胃液素B．缩胆囊素C．生长抑素D．抑胃肽

单选题Germany's chimney sweeps—hallowed as bringers of good luck, with their black top hats and coiled-wire brushes— are under attack. Last week the European Commission's directorate for the internal market revived proceedings against an antiquated German law that protects sweeps against competition. The country's chimney sweeps enjoy a near-perfect monopoly. Germany is divided into around 8000 districts, each ruled by its own master sweep who usually employs two more sweeps. Although this is a private enterprise, the maintenance and inspection service provided is compulsory and prices are set by the local authority: sweeps cannot stray outside their district, nor can householders change their sweep even if they loathe him. This rule cuts both ways. "There are some customers I can't stand either," says one Frankfurt sweep. The rationale is simple: chimney-sweeping and related gas and heating maintenance in Germany are treated as a matter of public safety. Annual or semi-annual visits are prescribed, keeping the sweeps busy all year round. For centuries, chimney-sweeps in Europe were a wandering breed. But in 1937 the chimney-sweep law was revised by Heinrich Himmler, then the acting interior minister. His roles tied chimney sweeps to their districts and decreed that they should be German, to enable him to use sweeps as local spies. The law was updated in 1969, leaving the local monopolies in place but opening up the profession, in theory at least, to non-Germ, ans. But in practice few apply. Four years ago a brave Pole qualified as a master in Kaiserslautern, according to a fellow student, and this year an Italian did so in the Rhineland Palatinate. But he, like most newly qualified German masters, will spend years on a waiting list before he gets his own district. The European Commission would like to see a competitive market in which people can choose their own sweeps, just as they choose builders or plumbers. It first opened infringement proceedings in 2003, and the German government of the time promised to change the law but failed to do so. And despite the huffing and puffing from Brussels, tile government is still reluctant to dismantle its antiquated system on safety grounds. The number of deaths from carbon-monoxide poisoning in Germany is around one-tenth that in France or Belgium, claims the Frankfurt sweep. So Germans are likely to be stock with their neighbourhood Schornsteinfegers—whether they can stand each other or not—for some time to come.

单选题 高原心脏病多见于： A、高原出生的婴幼儿 B、移居高原3个月的成年人 C、长期高原居住者 D、短期高原逗留者 E、急性高原反应持续3个月以上者

单选题中老年人呕血伴反复发作的、无明显规律的上腹痛并有厌食及消瘦者，应考虑

单选题霍奇金淋巴瘤伴有结节性淋巴细胞增生，肿瘤细胞为爆米花细胞的组织学类型是

单选题亚急性细菌性心内膜炎最常见的病原体是

单选题男性，60岁，2年来劳累后心慌、气短，并常出现夜间阵发性呼吸困难，不能平卧，发作时咳较多白色泡沫样痰。查体：心律齐，心率120次／分，双肺哮鸣音及肺底湿性啰音。诊断应首先考虑为

单选题女性，25岁，血压220／100mmHg，疑为肾血管性高血压，下列哪项对该诊断最有意义

单选题幽门螺杆菌感染与下列哪一项无关