单选题病人术后的处理中哪项不正确A．胃肠道手术病人肛门排气后，可开始进食B．腹部的减张缝线一般在术后2周左右拆除C．伤口的乳胶片引流一般在术后4～7日拔除D．一般性手术后的病人，应鼓励早期活动E．术后尿潴留导尿量超过500ml者，应留置尿管1～2日

单选题必须紧急手术治疗的疝是（ ）

单选题恢复肺泡功能和功能残气量较为优越的通气模式是

单选题半岁以内婴幼儿腹股沟斜疝的治疗采用

单选题成人心肺复苏胸外按压，应使胸骨下陷（ ）

单选题尿蛋白在(+++)以上，应考虑为A．肾小球疾病B．肾小管疾病C．肾间质疾病D．肾血管疾病E．肾脏感染

单选题女性患者，25岁，因原发性甲亢行甲状腺大部切除术后10小时，患者烦躁不安、呼吸困难、嘴唇发钳，切口敷料干燥。引流管内未见血性液体，颈粗。该病人的正确处理是

单选题A．胃十二指肠溃疡 B．门静脉高压症C．出血性胃炎 D．肝肿瘤和肝外伤E．胃癌

单选题关于骨肉瘤的叙述不正确的是

单选题女，18岁，左乳包块2年，查体：右乳外上象限可触及2cm×2cm大小质韧肿物，边界清，表面光滑，易活动，诊断首先考虑是

单选题膜上尿道断裂时，尿外渗范围在

单选题肾损伤的护理措施有（ ）

单选题腰麻后头痛常发生于麻醉后第几天

单选题关于胫腓骨骨折的描述不正确的是

单选题关于肝破裂的描述，下列哪项是错误的A．肝损伤常合并胆汁性腹膜炎B．肝破裂有肝较左肝多C．肝破裂如肝静脉主干有损伤，有并发空气栓塞的可能D．肝破裂应行肝叶切除术E．肝破裂常有胆道出血

单选题早、中期食管癌常用的手术方法是

单选题腰腿痛和颈肩痛最常见的病因是

单选题下列关于休克的治疗原则，错误的是

单选题When Melissa Mahan and her husband visited the Netherlands, they felt imprisoned by their tour bus. It forced them to see the city according to a particular route and specific schedule--but going off on their own meant missing out on the information provided by the guide. On their return home to San Diego, California, they started a new company called Tour Coupes. Now, when tourists in San Diego rent one of their small, brightly coloured three-wheeled vehicles, they are treated to a narration over the stereo system about the places they pass, triggered by Global Positioning System (GPS) satellite technology. This is just one example of how GPS is being used to provide new services to tourists. "What we really have here is a technology that allows people to forget about the technology," says Jim Carrier of IntelliTours, a GPS tourism firm which began offering a similar service over a year ago in Montgomery, Alabama. The city is packed with sites associated with two important chapters in American history, the civil war of the 1860s and the civil-rights movement a century later. Montgomery has a 120-year-old trolley system, called the Lightning Route, which circulates around the downtown area and is mainly used by tourists. On the Lightning Route trolleys, GPS-triggered audio clips point out historical hotspots. Other firms, such as CityShow in New York and GPS Tours Canada in Banff, Canada, offer hand-held GPS receivers that play audio clips for listening to while walking or driving. In South Africa, Europcar, a car-rental firm, offers a device called the Xplorer. As well as providing commentary on 2 000 points of interest, it can also warn drivers if they exceed the local speed limit. If such services prove popular, the use of dedicated audio-guide devices could give way to a different approach. A growing number of mobile phones have built-in GPS or can determine their locations using other technologies. Information for tourists delivered via phones could be updated in real time and could contain advertisements. "Location-based services", such as the ability to call up a list of nearby banks or pizzerias, have been talked about for years but have never taken off. But aiming such services at tourists makes sense--since people are more likely to want information when in an unfamiliar place. It could give mobile roaming a whole new meaning.

单选题化脓性关节炎早期诊断中，最有价值的方法是