正确答案:

题目：Creating the Logistics Vision Nowadays,most companies are familiar with the idea of "mission statement"as an expression of setting a vision for the business.The mission statement seeks to define the pur-pose of the business,its boundaries and its aspirations.It is now common for organizations to have such statement for the business as a whole and for key constituent components.What some companies have found is that there can be significant benefits to defining the lo-gistics vision of the firm. The purpose of the logistics vision statement is to give a clear indication which business intends to build a position of advantage through closer customer relationship.Such state-ment is never easy to construct.There is always the danger that they will publish the ener-getic and encouraging declaration that give everyone a warm feeling but provide no guideline for action. Ideally the logistics vision should be built around the simple issue of"How do we intend to use logistics and supply chain management to create value for our customers?"To realize this idea will necessitate a detailed understanding of how customer value is created and deliv-ered in the market in which the business competes.Value chain analysis will be a fundamen-tal element in this investigation as will the definition of the core competencies and capabilities of the organization.Asking the question"What activities dowe excel in?"and"What is it that differentiates us from our competitors?"is the starting point for creating the logistics vision statement. Earlier,it was suggested that the three words"Better,Faster,Cheaper"summarizes the ways in which logistics vision statement can provide value for customers.The criterion for good logistics vision statement is that it should provide the road map for how these three goals are to be achieved． Questions:

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学习资料的答案和解析：

[单选题]主要通过胃肠道传播的肝炎是（）

甲型病毒肝炎

解析：甲、戊型肝炎通过胃肠道传播，乙、丙、丁、庚型肝炎可有输血及血制品史、家属中有相同患者。

[单选题]患者男性，67岁，有支气管哮喘病史10年，每遇寒冷季节或呼吸道感染则发烧，哮喘发作加重。近5日来发烧，38～39℃，两肺布满湿啰音和哮鸣音，心率130次／分，血压160/95mmHg，呼吸急促，面部发绀，宜选用的治疗措施（）

倍氯米松+沙丁胺醇

解析：支气管哮喘（简称哮喘），是一种由嗜酸性粒细胞、肥大细胞和T淋巴细胞等多种炎症细胞参与的气道慢性炎症。主要治疗药物：①β2受体激动剂，短效吸入型β受体激动剂如沙丁胺醇、特布他林和非诺特罗是治疗急性发作和预防性治疗运动诱发哮喘的首选药物。②糖皮质激素，是治疗支气管哮喘的最有效的抗炎药物，可全身给药或经气道吸入，吸入剂有倍氯米松或布地奈德，在急性严重哮喘发作早期，口服糖皮质激素可防止哮喘发作的加重，在哮喘持续状态时需用大剂量糖皮质激素短期全身给药。③茶碱类药物，具有扩张支气管作用，可通过抑制磷酸二酯酶而加强β受体的功能，拮抗腺苷受体；．刺激肾上腺素分泌，增强呼吸肌收缩；增强气道纤毛清除功能。具有明显抗炎、免疫调节和降低气道高反应性等作用，是目前治疗哮喘的有效药物。但本题中它与止咳药麻黄碱合用，只有平喘作用，没有抗炎作用，不合理。

[单选题]数据库系统的查询工具应包括除以下那些的所有功能？（）

C、数据有效性检查器

[单选题]凡圆筒形构件，如圆柱形压力容器、锅炉的锅筒等都需经弯曲加工成型，钢板在卷板机的辊子之间受到弯曲力矩的作用，产生（）而弯曲。

塑性变形

[单选题]Ⅰ度房室传导阻滞时的心电图改变是（）。

P-R间期≥0.21s