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安全生产职业卫生监管台帐应包含哪些主要内容？

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一台螺杆式低压空压机，运行中发现管线压力与机内压力的压差大于1Bar（从空压机面板上可直观看出两块的压差），请试述其原因。

戴尔的（）从直接具体经验到抽象经验排列了11种媒体，有助于根据学习者的学习能力和先前经验水平选择适当的媒体。

There are eight traditional functions of marketing：（ 1 ）Buying： A marketer focuses on buyers’ needs and desires in order to decide what products to make available. Understanding buyers’ behavior is of great importance. （ 2 ）Selling： Marketers usually view selling as a persuasive activity that is completed through promotion. Selling includes personal selling， advertising， and other selling methods. It is probably the function of marketing that we most often see in our daily life. （ 3 ）Transporting： Transporting is physically moving the product from the seller to the buyer. Marketers focus on transporting costs and services. （ 4 ）Storing： Like transporting， storing is an aspect of the physical distribution of products. Storing includes warehousing activities. Warehouses hold products for long periods sometimes in order to create time utility. （ 5 ）Grading： Grading involves sorting products according to size and quality. This makes buying and selling easier because it reduces the need for inspection and sampling. （ 6 ）Financing： For many products， such as automobiles， fridges， and new homes， the purchase is facilitated when the marketer provides credit that makes the purchasing of the product possible. （ 7 ）Marketing research： Through research， marketers may find out the need for new products and services. By gathering information on a regular basis， they can better plan， carry out and control marketing activities. （ 8 ）Risk taking： It involves bearing the uncertainties that are part of the marketing process. Most marketing decisions result in either success or failure that is associated with risk.Marketers usually use different selling methods.

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五帝之所连，三王之所争，仁人之所忧，任士之所劳，尽此矣。伯夷辞之以为名，仲尼语之以为博，此其自多也，不似尔向之自多于水乎？庄子嘲讽伯夷、仲尼“自多”所依据的理念是什么？