车辆在山区道路跟车行驶时，应怎样做？A．紧随前车之后 B．适当加大安全距离 C．适当

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 con sumers 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.

下列各句中，没有语病的一句是(3分)

A．面对资源约束趋紧、环境污染严重、生态系统退化的严峻形势，必须树立尊重自然、顺应自然、保护自然的生态文明，努力建设美丽中国。

B．切实开展批评和自我批评，勇于纠正和揭露工作中的缺点、错误，坚决同消极腐败现象作斗争。

C．如果给让座者以起码的尊重，让他们感觉到让座行为的价值所在，才有可能真正形成良好的社会风气。

D．科学家计算过，鲣鸟从发现猎物收缩双翅，到俯冲扎入水中把猎物叼住，仅仅只需要820毫秒的时间。

软件生存周期中时间最长的是（）阶段。

A、总体设计

B、需求分析

C、软件测试

D、软件维护

有关计算机内部的信息表示，下面不正确的叙述是（）。

A.计算机内部的汉字编码是用二进制表示的

B.计算机内部数值数据的符号位是用0或1表示

C.计算机内部表示字符都是用ASCII码

D.计算机内部表示地址的符号，除了0就是1

E.计算机内部的汉字编码是用ASCII码表示的

晏阳初针对四大问题的四大教育，最为根本的是( )。

A．文艺教育 B．生计教育 C．卫生教育 D．公民教育