公安机关的日常制度主要包括( )。 A．日常行政会议、请示报告 B．公文运转、请假

在洪水期，急弯河段凸岸处的低平沙嘴常被淹没，河宽骤增，主流可能会出现切滩撇弯现象，此时凹岸旁将出现大片（）.

A、回流区

B、急流区

C、斜面流区

D、花水区

有关线性IgA大疱性皮病的临床特征的描述，不正确的是

A．多在外观正常或红斑上发生大小不等水疱

B．表现为疱壁厚、不易破的大疱

C．好发于四肢伸侧，分布对称

D．尼氏征阴性

E．可自行缓解

施工单位应当预支农民工基本生活费，基本生活费用的最低标准不得低于没人每天多少元（）

A.10

B.15

C.20

D.25

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.

下列哪项不是骨的结构

A．关节盘
B．骨膜
C．骨骺端
D．板障
E．黄骨髓