单选题 一老年男性，以消瘦、乏力、食欲不振半年，低热三天为主诉来诊，胃镜检查提示胃窦癌，该患最可能的诊断为下列哪一项？ A、多发肝脓肿 B、多发肝囊肿继发感染 C、多囊肝 D、继发性肝癌 E、原发性肝部（多中心型）

单选题梅毒树胶肿的叙述，正确的是

单选题一般不出现血红蛋白尿的疾病是

单选题出现“胆酶分离”现象的疾病是

单选题心尖搏动向左而不向下移位最常见于

单选题 牛眼征和靶环征多见于（ ）的肝转移 A、肺癌 B、肾癌 C、胃肠道癌 D、卵巢及乳腺癌瘤 E、以上都是正确的

单选题四肢对称性紫癜伴有关节痛、腹痛、血尿者的是

单选题正常AG代谢性酸中毒见于

单选题 下列为正确问诊内容，但应除外哪一项？ A、病人的主诉 B、疾病的现病史 C、病人过去的健康情况和疾病情况 D、病人在单位与周围同事的关系 E、病人的个人史

单选题A．P波增宽，有切迹 B．P波高耸C．可见逆行P波 D．可见异位P波E．P与QRS无关

单选题A．瞳孔缩小B．瞳孔扩大C．瞳孔大小不等D．瞳孔对光反射消失E．瞳孔集合反射消失

单选题腰大肌征阳性提示阑尾是

单选题A．室性期前收缩 B．室内传导阻滞C．预激综合征 D．右室肥大E．心肌梗死

单选题Even plants can run a fever, especially when they are under attack by insects or disease. But (1) humans, plants can have their temperature (2) from 3,000 feet away—straight up. A decade ago, (3) the infrared scanning technology developed for military purpose and other satellites, physicist Stephen Paley (4) a quick way to take the temperature of crops to determine (5) ones are under stress. The goal was to let farmer (6) target pesticide spraying (7) rain poison on a whole field, which (8) include plants that don't have the pest problem. Even better, Paley's Remote Scanning Services Company could detect crop problem before they became (9) to the eye. Mounted on a plane flown at 3,000 feet (10) , an infrared scanner measured the heat emitted by crops. The data were (11) into a color-coded map showing (12) plants were running "fevers". Farmers could then spot spray, using 50 to 70 percent less pesticide than they (13) would. The bad news is that Paley's company closed down in 1984, after only three years. Farmers (14) the new technology and long-term backers were hard (15) . But with the renewed concern about pesticides on produce, and refinements in infrared scanning, Paley hopes to (16) into operation. Agriculture experts have no doubt about the technology works. "This technique can be used (17) 75 percent of agricultural land in the United States," says George Oerther of Texas A＆M. Ray Jackson, who recently retired from the Department of Agriculture, thinks (18) infrared crop scanning could be adopted by the end of the decade. But (19) Paley finds the financial backing (20) he failed to obtain 10 years ago.

单选题AustinFlint杂音和二尖瓣狭窄舒张期杂音的主要辨别点在于

单选题Galloway, a mostly middle-class community northwest of Atlantic City, is part of a wave of districts across the nation trying to remake homework amid concerns that high-stakes testing and competition for college have fueled a nightly grind that is stressing out children and depriving them of play and rest, yet doing little to raise achievement, particularly in elementary grades. Such efforts have drawn criticism from some teachers and some parents who counter that students must study more, not less, if they are to succeed. Even so, the anti-homework movement has been reignited in recent months by the documentary Race to Nowhere, about burned-out students caught in a pressure-cooker educational system. "There is simply no proof that most homework as we know it improves school performance," said Vicki Abeles, the filmmaker and a mother of three from California. "And by expecting kids to work a 'second shift' in what should be their downtime, the presence of schoolwork at home is negatively affecting the health of our young people and the quality of family time. " So teachers at Mango Elementary School in Fontana, Calif., are replacing homework with "goal work" that is specific to individual student's needs and that can be completed in class or at home at his or her own pace. The Brooklyn School of Inquiry, a gifted and talented program, has made homework optional. "I think people confuse homework with rigor," said Donna Taylor, the Brooklyn School's principal, who views homework for children under 11 as primarily benefiting parents by helping them feel connected to the classroom. Research has long suggested that homework in small doses can reinforce basic skills and help young children develop study habits, but that there are diminishing returns. Still, efforts to roll back homework have been opposed by those who counter that there is not enough time in the school day to cover required topics and that homework reinforces classroom learning. In Coronado, Calif. , the school board rejected a proposal by the superintendent to eliminate homework on weekends and holidays after some parents said that was when they had time to help their children and others worried it would result in more homework on weeknights. Homework wars have divided communities for over a century. In the 1950s, the Sputnik launching ushered in heavier workloads for American students in the race to keep up with the Soviet Union. The 1983 report "A Nation at Risk" and, more recently, the testing pressures of the No Child Left Behind law, also resulted in more homework for children at younger ages. A few public and private schools have renounced homework in recent years, but most have sought a middle ground. In Galloway, the policy would stipulate that homework cover only topics already addressed in class. Dr. Giaquinto, Galloway's superintendent, said the goal of the proposed policy was to make homework "meaningful and manageable," noting that teachers would have to coordinate assignments so that a student's total homework would not exceed the time limit.

单选题女，45岁，查外周血Hb90g／L，RBC2．85×10 12 ／L。外周血涂片靶形红细胞占26％，本例诊断为

单选题 VITEK微生物自动鉴定及药敏分析系统是（ ） A、采用光电比色法，测定微生物分解底物导致pH值改变而产生的不同颜色，来判断反应的结果 B、采用传统呈色反应法，同时采用敏感度极高的快速荧光测定技术来检测细菌胞外酶 C、采用荧光增强技术与传统酶、底物生化呈色反应相结合 D、底物中加入酶基质，不同的细菌作用于不同的底物，激发出不同强度的荧光 E、利用微生物对不同碳源代谢率的差异

单选题与Babinski征意义相同的病理征是

单选题 关于脑脊液检验的正常参考值，下列哪项是错误的？ A、蛋白定量成人 0．15～0．45g／L B、蛋白电泳α1-球蛋白为 3％～8％ C、IgG0．01～0．04g／L D、氯化物定量 119～12gmmol／L E、乳酸脱氢酶总活性0～5mIU／L