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患者，男性，74岁，右耳听力减退20余天，无头痛、鼻塞、血涕等，鼻咽部磁共振平扫加增强示：右侧鼻咽部黏膜增厚，侧陷凹消失，软组织肿块累及咽旁间隙。

患者体检时未触及肿大淋巴结，腹部B超、胸片及全身骨扫描均未见明显异常，电子鼻咽镜示：鼻咽顶、右侧咽隐窝可见新生物，表面不光滑，结构不清，鼻咽部、颈部MRI示肿瘤侵犯鼻咽腔，颈部未见淋巴结肿大，活检示：（鼻咽）分化型非角化性癌，该患者的分期为2008年鼻咽癌（）。

A.T1N0M0

B.T2N0M0

C.T1N1M0

D.T2N1M0

E.T3N0M0

F.T4N0M0

答案

参考答案：A

解答题

求多项式f（x）=x5+5x4+10x3+10x2+5x+1当x=-2时的值．
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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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