如图为菜豆种子和玉米种子的结构,据图回答: (1)填写标号所指名称:E_____

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问题:

如图为菜豆种子和玉米种子的结构,据图回答:

(1)填写标号所指名称:E______F______

(2)菜豆种子和玉米种子结构相同点:都具有______和______.

考点:种子萌发的条件和过程
题型:填空题

溴有两种同位素,在自然界中这两种同位素大约各占一半。已知溴的核电荷数是35,原子量是80,则溴的这两种同位素的中子数分别等于()。

A.44,46

B.79,81

C.44,45

D.45,46

E.39,41

题型:填空题

巨大胎儿与双胎妊娠的共同点中不正确的是()

A.易产程延长

B.易宫缩乏力

C.早产发生率高

D.易产后出血

E.均为高危妊娠

题型:填空题

法律是“对法庭实际上将要做什么的预测”的提出者是()

A.霍布斯

B.拉兹

C.霍姆斯

D.罗斯

题型:填空题

急性白血病的诊断最主要的依据是:()

A.发热

B.出血

C.贫血

D.骨痛

E.以上都不是

题型: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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