急性心肌梗死发病3小时最先考虑的处置是（） 非同步电复律。 安置DDD型永久起搏器。 静脉溶栓。 心脏电生理检查。 食管调搏。
心绞痛的痛觉是由什么引起（） 冠脉痉挛。 心肌缺血缺氧代谢产物刺激神经。 迷走神经紧张性增高。 窦房结、房室结功能低下。 低钾血症。
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:What does mission statement intend to do？（） A.To please management.。 To define,summarize anda chieve a common goal.。 To achieve higher market share and profitability.。 To develop new market.。
心内膜下心肌梗死的心电图变化不包括（） 心肌梗死区导联有病理性Q波形成。 普遍ST段压低。 aVR导联ST段抬高。 或有对称性T波倒置。 无病理性Q波。
女，59岁，急性心肌梗死12小时内应避免使用（） 洋地黄。 呋塞米。 哌替啶。 吗啡。 罂粟碱。
某市慈善总会举办大型赈灾文艺晚会。晚会现场，某著名企业举牌认捐人民币100万元，并签署捐赠协议。一周后，该企业向慈善总会提出，由于企业调整营销方向，致使资金紧张，只能捐赠人民币10万元。根据有关法律法规，下列关于该企业改变捐赠数额行为的说法，正确的是（）。
