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男性，42岁，B超发现左肾结石1cm大小，平时无明显症状，偶有腰部酸胀不适感，既往体健，无排石史。

为明确诊断还应做（）。

A.尿培养

B.膀胱镜检查

C.CT

D.KUB+IVP

E.尿流率检查

答案

参考答案：D

解析：

上尿路结石最常见的症状是疼痛和血尿。KUB+IVP可明确诊断，同时是泌尿系结石最常用的检查措施。

选择题

“1848年，两个德国人向全世界宣告了一种新的社会主义理论诞生。”这种“理论”诞生的标志是

A．空想社会主义思潮的出现

B．《 * * 党宣言》的发表

C．巴黎公社的建立

D． * * 主义者同盟的产生
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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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