营养性缺铁性贫血铁剂治疗后网织红细胞的变化规律是()A.服铁剂后1~2天升高、3~4

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问题:

营养性缺铁性贫血铁剂治疗后网织红细胞的变化规律是()

A.服铁剂后1~2天升高、3~4天达高峰、7~10天下降至正常;血红蛋白10天增加

B.服铁剂后2~3天升高、5~7天达高峰、2~3周降至正常;血红蛋白2~3周增加

C.服铁剂后4~7天升高、10~14天达高峰、1~2个月降至正常;血红蛋白2~3个月增加

D.服铁剂后7~10天升高、2~3周达高峰、1~2个月下降至正常;血红蛋白l~2个月增加

E.服铁剂后1~2天升高、3~4天达高峰、2~3个月下降至正常;血红蛋白2~3个月增加

考点:儿内科(医学高级)十五、造血系统疾病十五、造血系统疾病题库
题型:单项选择题

下列反应中必须加入氧化剂才能进行的是

A.KClO3→O2

B.Cu 2 Cu

C.Fe+2→Fe+3

D.CuO→CuCl2

题型:单项选择题

在现在的数据库系统开发中,常采用高级语言或第四代(4GL)语言进行开发,这是为了

A.代码的可重用性

B.系统的可维护性

C.降低开发和维护费用

D.用户界面的友好性

题型:单项选择题

下列关于胶体的说法正确的是(  )

A.胶体与其他分散系的本质区别是粒子直径的大小

B.CuSO4溶液和Fe(OH)3胶体都能产生丁达尔效应

C.明矾净水是利用胶体的吸附性

D.雾、豆浆、氯化钠溶液属于胶体

题型:单项选择题

当环境温度介于0~15℃、15~25℃、25~40℃时,乙炔气瓶的剩余压力分别为()、()、()MPa。

A.0.05

B.0.1

C.0.2

D.0.3

E.0.4

题型:单项选择题

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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