单选题男，36岁，以突发心前区疼痛3小时，ECG显示STv弓背向上抬高，拟诊为冠心病，急性前壁，心梗，溶栓治疗未获再通，入院次日在解大便时突发抽搐，呼之不应，考虑心脏性猝死，早期确立患者猝死主要的依据是

单选题下述哪项不引起食管下段括约肌张力下降

单选题A．AML－M 2 B．ALL C．AML－M 5 D．CML E．CLL

单选题A．血压病眼底Ⅰ级改变B．血压病眼底Ⅱ级改变C．高血压病眼底Ⅲ级改变D．高血压病眼底Ⅳ级改变E．正常眼底

单选题哪一项检查最有助于鉴别垂体性Cushing病和异位ACTH综合征( )(2000年)

单选题下列有关高血压病的并发症，下列哪项不正确( )(1996年)

单选题关于消化道平滑肌基本电节律的叙述，错误的是

单选题支气管哮喘的发病与下列哪种物质无关( )(1994年)

单选题肺癌的主要组织来源是

单选题导致肺心病Ⅱ型呼吸衰竭患者发生呼吸性酸中毒合并代谢性碱巾毒的常见病因有

单选题男性，60岁，慢性咳喘18年，加重1周，血气分析结果如下：pH7．15，PaO 2 5mmHg，PaCO 2 75mmHg．HCO 3 6mmo/L，BE一4mmol/L。考虑诊断为

单选题对于球后溃疡的临床表现，下列哪项不符合( )(1996年)

单选题Effective communication is essential for all organisations. It links the activities of the various parts of the organisation and ensures that everyone is working towards a Common goal. It is also extremely important for motivating employees. Staff need to know how they are getting on, what they are doing right and in which areas they could improve. Working alone can be extremely difficult and it is much easier if someone takes an interest and provides support. Employees need to understand why their job is important and how it contributes to the overall success of the firm. Personal communication should also include target setting. People usually respond well to goals, provided these are agreed between the manager and subordinate and not imposed. However, firms often have communications problems that can undermine their performance. In many cases, these problems occur because messages are passed on in an inappropriate way. There are of course, several ways of conveying information to others in the organisation. These include speaking to them directly, e-mailing, telephoning or sending a memo. The most appropriate method depends on what exactly it is you are communicating. For example, anything that is particularly sensitive or confidential, such as an employee's appraisal, should be done face-to-face. One of the main problems for senior executives is that they do not have the time or resources needed to communicate effectively. In large companies, for example, it is impossible for senior managers to meet and discuss progress with each employee individually. Obviously this task can be delegated but at the cost of creating a gap between senior management and staff. As a result, managers are often forced to use other methods of communication. Like memos or notes, even if they know these are not necessarily the most suitable means of passing on messages. The use of technology, such as e-mail, mobile phones and network system, is speeding up communication immensely. However, this does not mean that more investment in technology automatically proves beneficial, systems can become outdated or employees may lack appropriate training. There are many communications tools now available but a firm cannot afford all of them. Even if it could, it does not actually need them all. The potential gains must be weighed up against the costs, and firms should realise that more communication does not necessarily mean better communication. As the number of people involved in an organisation increase, the use of written communication rises even faster. Instead of a quick conversation to sort something out numerous messages can be passed backwards and forwards. This can lead to a tremendous amount of paperwork and is often less effective than face to face communication. When you are actually talking to someone you can discuss things until you are happy they have understood and feedback is immediate. With written messages, however, you are never quite sure how it will be received. What you think you have said and what the other person thinks you have said can be very different. The amount of written information generated in large organisations today can lead to communication overload. So much information is gathered that it gets in the-way of making decisions. Take a look at the average manager's desk and you will see the problem—it is often covered in letters, reports and memos. This overload can lead to inefficiencies. For example, managers may not be able to find the information they want when they need it. Communication is also becoming more difficult with the changes occurring in employment patterns. With more people working part-time and working from home, managing communication is becoming increasingly complex.

单选题下列哪一种癌在胃幽门部一般不会出现A．腺癌B．鳞状细胞癌C．硬癌D．胶样癌E．髓样癌

单选题关于NHL的治疗原则，不正确的是

单选题蛋白电泳中出现的M蛋白是

单选题护理咯血病人的关键措施是（ ）

单选题氧离曲线表示( )(1993年)

单选题A．阻塞性肺气肿 B．老年性肺气肿C．代偿性肺气肿 D．间质性肺气肿E．灶性肺气肿

单选题A．促进胃排空，增强胃窦和十二指肠运动B．减少胃酸和胃蛋白酶分泌C．促进胃黏膜血流，刺激胃黏液分泌D．防止氢离子反渗，促进胃黏液分泌E．减少胃酸分泌，延缓胃排空 (1997年)