单选题患者，男，31岁，2年来反复的腹泻，便前腹痛，便后缓解，体重无变化。近2个月来由于生活压力等原因，上述症状加重，每日大便4～6次，有黏液，无脓血，使用抗生素治疗效果不佳。最可能的诊断是

单选题下述蕈样霉菌病的病理变化中，哪一项是错误的A．可见脑回样肿瘤细胞B．可见鲍氏小脓肿C．发生在皮肤D．可扩散到淋巴结和内脏E．由B细胞发生

单选题血吸虫病时，导致机体损害最严重的是( )(2001年)

单选题Fate has not been kind to the western grey whale. Its numbers have dwindled to 130 or so, leaving it “critically endangered” in the eyes of the International Union for the Conservation of Nature. Fishing-nets, speeding ships, pollution and coastal development threaten the few that remain. Most recently, drilling for oil and gas in their main summer feeding grounds, near Sakhalin island off Russia’s Pacific coast, has brought fresh risks for the luckless creatures. Yet the rush to develop Sakhalin’s offshore fields may yet be the saviour of the species. When drilling was first discussed in the 1990s, there were muted complaints. When a consortium called Sakhalin. Energy, led by Royal Dutch Shell, announced plans to build an oil platform and lay pipelines in the only bay where the whales were known to congregate, these protests proliferated. In response, the consortium established an independent panel to advise it on how best to protect the whales and promised to fund its work. It subsequently agreed to change the route of the pipeline at the panel’s suggestion, although it refused to move the platform, as other critics had demanded. It also agreed either to follow the panel’s recommendations in future or to explain publicly why it was rejecting them. The platforms and pipelines are now complete. Sakhalin Energy exported its first cargo of liquefied natural gas last week. The project, says Shell, is an engineering triumph and a commercial success despite all the controversy. But has it been a success for the whales? Sakhalin Energy says their number seems to be growing by 2.5% a year, although Ian Craig, the firm’s boss, admits that the cause might be greater scrutiny rather than population growth. The scientists on the panel still seem worried. They complain that the firm has not always provided the information they need to assess the threat to the whales. It also has not always followed advice, the scientists’ advice about how noisy construction might scare the animals away, for example, or the speed that boats should travel to minimize the risk of hitting the whales. The scientists warn that the loss of just a few fertile females would be enough to tip the population into irrevocable decline. Last summer, there seemed to be far fewer whales around than normal. On the other hand, the panel knows this only because Sakhalin Energy funds lots of research on the whales. As a result, it has discovered that they have a wider range than originally thought, which might explain why so few of them showed up off Sakhalin island last year. Therefore, it is hard to escape the conclusion that, for creatures with a lot as sorry as the western grey whale, a nearby oil project is something of a blessing.

单选题 如图，以下关于水痘的典型皮疹的叙述哪项是正确的 ( ) A、与带状疱疹的分布部位相同 B、弥漫性皮疹为主，疹间皮肤正常 C、愈后大多留有瘢痕 D、皮疹多见于四肢和颜面部 E、以疱疹最多见，分批出现

单选题 治疗泌尿系感染时，在碱化尿液中疗效降低的抗生素是 ( ) A、卡哪霉素 B、链霉素 C、红霉素 D、四环素 E、庆大霉素

单选题支气管哮喘持续状态很重要的去痰方法是A．应用抗生素B．应用去痰药物C．补液纠正失水D．应用支气管扩张药物E．应用肾上腺皮质激素

单选题A．青霉素 B．红霉素 C．甲硝唑 D．万古霉素

单选题 男性，40岁，突发血压升高，达220/140mmHg，疑嗜铬细胞瘤，下列哪项伴发表现对诊断最有意义? A、皮肤潮红、面色苍白，大汗淋漓 B、心前区疼痛、心动过速 C、头痛、心悸、多汗三联症 D、恶心、呕吐、上腹部紧迫感 E、焦虑、恐惧感

单选题生长激素是

单选题慢性支气管炎最重要的临床诊断依据是

单选题哪项是继发性肺结核病所不具备的( )(1994年)

单选题关于高血压病患者的降压治疗，下列提法不正确的是

单选题风湿性疾病临床表现特点是（ ）

单选题慢性支气管炎急性发作期最重要的治疗是

单选题A．柳氮磺吡啶B．美沙拉嗪C．布地奈德D．硫唑嘌呤 (2008年)

单选题下列关于肺牵张反射的叙述，错误的是 A.感受器存在于支气管和细支气管的平滑肌层中 B.传入纤维在迷走神经中上行至延髓 C.可促进吸气及时转入呼气 D.正常人平静呼吸时，对呼吸节律起重要调节作用

单选题患者，男，58岁，间断水肿2年，加重半个月，气短尿少2天。既往有糖尿病病史1年。查体：血压160/90mmHg，腹水征阳性，下肢明显水肿，心肺未见异常。辅助检查：尿蛋白（++++），红细胞0～3/HP，血浆白蛋白20g/L。

单选题下述关于心力衰竭概念的叙述，错误的是( )(2004年)

单选题糖尿病性非酮症高渗性昏迷的诊断依据是