单选题心电图上R－R间期绝对规则，频率200次／分，QRS波群时限为0．08秒，最可能的诊断是

单选题A．心悸伴心前区痛B．心悸伴发热C．心悸伴贫血D．心悸伴呼吸困难E．心悸伴消瘦、出汗

单选题A．心电轴左偏 B．心电轴右偏C．心电轴不偏 D．顺钟向转位E．逆钟向转位

单选题关于心脏叩诊的叙述，下列哪项是错误的

单选题A．造血干细胞复制和分化异常B．DNA合成障碍C．血红蛋白合成障碍D．红细胞破坏过多E．血液丢失

单选题A．肾上腺皮质功能减退B．Cullen征C．多发性神经纤维瘤D．血色病E．Grey-Turner征

单选题由Einthoven创设的V2导联电极应放在

单选题关于面容与疾病相关性的叙述，不正确的是

单选题嗜酸粒细胞不增多的疾病是

单选题膝内翻或膝外翻畸形多见于

单选题患者，女，34岁。剧烈咳嗽后突然呼吸困难、发绀。体检：右胸呈鼓音，呼吸音消失。最可能的诊断为

单选题正常AG代谢性酸中毒见于

单选题支气管扩张患者咯血的性质是

单选题肝硬化病人蜘蛛痣常见于哪个部位的皮肤

单选题Although there are many skillful Braille readers, thousands of other blind people find it difficult to learn that system. They are thereby shut (1) from the world of books and newspapers, having to (2) on friends to read aloud to them. A young scientist named Raymond Kurzweil has now designed a computer which is a major (3) in providing aid to the (4) .His machine, Cyclops, has a camera that (5) any page, interprets the print into sounds, and then delivers them orally in a robot-like (6) through a speaker. By pressing the appropriate buttons (7) Cyclops's keyboard, a blind person can "read" any (8) document in the English language. This remarkable invention represents a tremendous (9) forward in the education of the handicapped. At present, Cyclops costs $ 50,000. (10) , Mr. Kurzweil and his associates are preparing a smaller (11) improved version that will sell (12) less than half that price. Within a few years, Kurzweil (13) the price range will be low enough for every school and library to (14) one. Michael Hingson, Director of the National Federation for the Blind, hopes that (15) will be able to buy home (16) of Cyclops for the price of a good television set. Mr. Hingson's organization purchased five machines and is now testing them in Maryland, Colorado, Iowa, California, and New York. Blind people have been (17) in those tests, making lots of (18) suggestions to the engineers who helped to produce Cyclops. "This is the first time that blind people have ever done individual studies (19) a product was put on the market," Hingson said. "Most manufacturers believed that having the blind help the blind was like telling disabled people to teach other disabled people. In that (20) , the manufacturers have been the blind ones. /

单选题尿比重增高见于

单选题A．尖颅B．方颅C．巨颅D．长颅E．变形颅

单选题诊断预激综合征最有价值的检查方法是

单选题下述心包摩擦音的听诊特性中哪项不正确

单选题由Einthoven创设的V 2 导联电极应放在