题目内容
提出“双重真理”，并认为理性和宗教并不矛盾的阿拉伯哲学家是()。
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The relationship between the last paragraph and the other paragraphs can best be described
一个质量可不计的活塞将一定量的理想气体封闭在上端开口的直立圆筒形气缸内，活塞上堆放着铁砂，如图所示。最初活塞搁置在气缸内壁的固定卡环上，气体柱的高度为H0，压强等于大气压强p。现对气体缓慢加热，当气体温度升高了△T=60K时，活塞(及铁砂)开始离开卡环而上升。继续加热直到气柱高度为H1=1.5H0。此后，在维持温度不变的条件下逐渐取走铁砂，直到铁砂全部取走时，气柱高度变为H2=1.8H0，此时气体的温度为()。 (不计活塞与气缸之间的摩擦)
实施会计电算化，可以提高整个企业的管理水平。
These three groups are rarely identical. An exception occurs occasionally in cases where customers for a particular industrial product may be few and easily identifiable. Such customers, all sharing a particular need, are likely to form. a meaningful target, for example, all companies with a particular application of the product in question, such as high-speed fillers of bottles at breweries. In such circumstances, direct selling (marketing that reaches only the program target) is likely to be economically justified, and highly specialized trade media exist to expose members of the program target--and only members of the program target--to the marketing program.
Most consumer-goods markets are significantly different. Typically, there are many rather than few potential customers. Each represents a relatively small percentage of potential sales. Rarely do members of a particular market segment group themselves neatly into a meaningful program target. There are substantial differences among consumers with similar demographic characteristics. Even with all the past decade's advances in information technology, direct selling of consumer goods is rare, and mass marketing--a marketing approach that aims at a wide audience--remains the only economically feasible mode. Unfortunately, there are few media that allow the marketer to direct a marketing program exclusively to the program target. Inevitably, people get exposed to a great deal of marketing for products in which they have no interest and so they become annoyed.
The author implies which of the following about specialized trade media？
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