干扰通道的()要尽可能小些。 A.放大系数 B.积分时间 C.微分时间 D.滞后时间

题型:单项选择题

问题:

干扰通道的()要尽可能小些。

A.放大系数

B.积分时间

C.微分时间

D.滞后时间

考点:仪表工考试仪表工综合练习仪表工综合练习题库
题型:单项选择题

下列关于移动平均线的说法,正确的有()。

A.运用移动平均线预测期货价格的理论依据是统计学的平均数原理

B.根据计算方法,移动平均线可以分为几何移动平均线、加权移动平均线和指数平滑移动平均线

C.时间越短,说明当期价格主要受较近的前期价格的影响

D.时间越长,说明当期价格主要受较近的前期价格的影响

题型:单项选择题

下列关于正常人Q波的描述错误的是()

A.Q波振幅<1/4R

B.Q波时间<0.03秒

C.aVR导联可见深而宽的Q波

D.V1导联可呈QS波

E.V1~V2导联应有q波

题型:单项选择题

简述霍布斯的自然法权思想。

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关于原发性脊柱侧凸,下列哪项是错误的

A.占脊柱侧凸畸形的80%

B.脊柱除侧凸外,不伴有纵轴旋转

C.多发生在胸段或胸腰段,脊柱多凸向右侧

D.多发生于儿童及青少年,女性较多见

E.在原发性曲度上下可发生代偿性继发曲度

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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