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问题 单项选择题

大气污染，指因人类的生产生活使某种物质进入大气从而导致其特性改变，使人们的生活、身体健康以及生态环境直接或间接遭受危害的现象。主要污染物有烟尘、粉尘、硫氧化物、一氧化碳、碳氢化物、放射性污染等。下列所述属于大气污染的是( )。

A．韩庄农户有几十辆农用大卡车废弃在麦田里，影响了春耕时间

B．淮河水质从解放前至今，越来越差

C．兰州市上空布满了驱之不去的“阴云”，那是市郊工厂的废气

D．汽车轰鸣声弄得老王整夜没有睡好觉

答案

参考答案：C

单项选择题 B型题

寒冷损伤综合征患儿重度硬肿恢复正常体温的时间为（）

A.1～2小时

B.2～6小时

C.6～12小时

D.12～24小时

E.24～48小时
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填空题

Some consumer researchers distinguish (1) "rational" motives and "emotional" (or "non-rational") motives. They use the term "rationality" (2) the traditional economic sense that assumes (3) consumers behave rationally when they carefully consider all alternatives (4) choose those that give them the greatest utility (i.e., satisfaction). (5) a marketing context, the term "rationality" implies that the consumer selects goods based (6) totally objective criteria, such (7) size, weight, price, and so on. "Emotional" motives imply the selection of goods (8) to personal or subjective criteria—the desire (9) individuality, pride, fear, affection or status.
The assumption underlying this distinction is (10) subjective or emotional criteria do not maximize utility or satisfaction. (11) , it is reasonable to assume that consumers always attempt to select alternatives that, (12) their view, serve to maximize satisfaction. Obviously, the assessment of satisfaction is a very personal process, based (13) the individual’s own needs as (14) as on past behavioral, social, and learning experiences. What may appear (15) irrational to an outside observer may be perfectly rational (16) the context of the consumer’s own psychological field. For example, a product purchased to enhance one’s self-image (such as a fragrance) is a perfectly rational form of consumer behavior. (17) behavior did not appear rational to the person who undertakes it (18) the time that it is undertaken, obviously he or she would not do it. (19) the distinction between rational and emotional motives does not appear to be warranted.
Some researchers go so far (20) to suggest that emphasis (21) "needs" obscures the rational, or conscious, nature of most consumer motivation. They claim that consumers act consciously (22) maximize their gains and minimize their losses; that they act not (23) subconscious drives but from rational preferences, (24) what they perceive to be (25) their own best interests.
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