整倍体

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问题:

整倍体

考点:遗传学作物育种作物育种题库
题型:名词解释

在站场内行走或作业,必须注意()的调动与运行。

题型:名词解释

现代商业保险的元素之一是()

A.可保风险的存在

B.可保损失的存在

C.投机风险的存在

D.投机损失的存在

题型:名词解释

对基金作出有效的评价,不需要考虑( )。

A.基金的投资目标
B.基金的风险水平
C.比较基准
D.基金经理的能力

题型:名词解释

痢疾杆菌的主要致病因素是()

A.吞入细菌数量

B.外毒素

C.神经毒素

D.侵袭力和内毒素

E.肠毒素

题型:名词解释

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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