双胍类口服降血糖药的作用机制是() A.使β细胞去极化,诱导β细胞分泌胰岛素 B.在

题型:单项选择题 B型题

问题:

双胍类口服降血糖药的作用机制是()

A.使β细胞去极化,诱导β细胞分泌胰岛素

B.在肠道内竞争性抑制葡萄糖苷酶,降低多糖及蔗糖分解葡萄糖,减少并延缓其吸收

C.增加机体对葡萄糖的耐受性

D.选择性的作用于胰腺β细胞,促进胰岛素的分泌

E.促进葡萄糖无氧酵解

考点:初级药师药物化学药物化学题库
题型:单项选择题 B型题

2010年2月5日,美国发现研究所创始人之一乔治·古尔德在评析“谷歌事件”、“美国对台军售”等事件对中美关系德尔影响时说,美国的经济发展和军事安全依赖中国,而中国在主要市场、外汇储备投资等方面也离不开美国。美国牺牲这种全球的关键协作,打压中国,只是为了换取在美元贬值和互联网等政治上的妥协,那就无疑是“自我毁灭的愚蠢行为”。吉尔德对美国对华政策作出上述评价的依据是 [ ]

①霸权主义和强权政治是美国对外政策的立足点 ②中美两国之间的共同利益大于利益分歧 ③维护国家利益是主权国家制定和推行对外政策的依据 ④中美两国在当代国际政治事务中形成了利益共同体

A.①④

B.①③

C.②③

D.②④

题型:单项选择题 B型题

总监理工程师负责( )建设单位与承包单位的合同争议、处理索赔、审批工程延期等。

A.解决

B.调解

C.处理

D.裁决

题型:单项选择题 B型题

By the early 1950s, some business people began to recognize that efficient production and extensive promotion did not guarantee that customers would buy products. These businesses, and many others, found that they must first determine what customers want and then produce it, rather than make products and try to change customers’ needs to fit what is expected. As more organizations realized the importance of knowing customers’ needs, U.S. businesses entered the marketing era, one of market or customer orientations (取向, 方向). Orientation toward customer satisfaction has resulted in increased concern about ethics and social responsibility and brought about an expansion into global markets. Management at many organizations has realized that we are in the "Total Quality Era", in which improved product quality, and customer focus are major components of successful domestic and global operations.

Because the marketing concept affects many parts of a business’s operations, and not just marketing, an organization’s top management must adopt it wholeheartedly. High-level executives must incorporate the market orientation into their management philosophies so completely that customers become the organization’s most important concern.

Management’s second major task is to restructure the organization. To satisfy customers’ objectives as well as its own, a company must coordinate all activities. To achieve this, the internal operations and overall objectives of one or more departments may need restructuring. If the head of the marketing unit is not a member of the organization’s top-level management, he or she should be. Some departments may have to be abolished and new ones created. Implementing (实施, 执行) the marketing concept demands the support not only of top management, but also of managers and staff at all levels. The transformation to an organization with a market orientation takes time. In the short run, a firm may experience the need to retain employees, financial constraints, limits on technology, capital equipment limitations, and prohibitive union work rules.

Even when an information system is established and the company reorganized, the firm’s new marketing approach may not work perfectly. First, a firm’s ability to satisfy customers’ needs for a particular product is limited. In a mass production economy, most business organizations cannot tailor products to fit the exact needs of each customer. Second, a company may be unable to learn what customers want, and when it does correctly identify customers’ needs, it often has a hard time developing a product that satisfies those needs. Third, by striving to satisfy one segment (部分, 部门) of society, a firm sometimes dissatisfies other segments. Producers of tobacco currently face this situation. Fourth, a company may have trouble maintaining employee morale during any restructuring to coordinate the activities of various departments.

An organization’s most important concern should be().

A. customers’ needs

B. management philosophy

C. business operations

D. market share

题型:单项选择题 B型题

《出海船舶户口簿》到期的,应当到()边防派出所申报换领。

A、船舶负责人户籍所在地

B、船舶负责人住所地

C、船舶停靠地

D、船籍所在地

题型:单项选择题 B型题

并发糖尿病的肝炎患者,血糖餐前6.8mmol/L,餐后15.0mmol/L,除调整总能量摄入量和食物结构外,为降低餐后血糖首先还应采取什么措施?()

A.增加蛋白质摄入量,降低糖类食物

B.增加脂肪摄入量,降低糖类食物

C.增加餐饮,不增加能量和食物量

D.加大用药量

E.加用胰岛素

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