哪个代谢产物可作为评价苯的接触指标() A.甲基马尿酸 B.马尿酸 C.尿酚 D.苯

题型:单项选择题

问题:

哪个代谢产物可作为评价苯的接触指标()

A.甲基马尿酸

B.马尿酸

C.尿酚

D.苯基硫醚氨酸

E.黏糠酸

考点:北京住院医师公共卫生学Ⅰ阶段北京住院医师公共卫生学(综合练习)北京住院医师公共卫生学(综合练习)题库
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.某次实验中,李明同学连接了如图所示的电路,若电源电压为6V,且保持不变,电阻R1=8Ω,滑动变阻器R2的最大阻值为10Ω。他所选用的电压表量程为0~3V,电流表量程为0~0.6A。为了保证电路安全,实验中滑动变阻器接入电路的阻值范围是(   )

A.0~2Ω      B.0~8Ω     C.2Ω~8Ω    D.8Ω~10Ω

题型:单项选择题

干热灭菌所需的温度和时间应根据物品种类和烤箱的类型来确定,一般为()

A.160℃,1小时

B.160℃,2小时

C.160℃,3小时

D.170℃,2小时

E.180℃,1小时

题型:单项选择题


In the following passage, there are 25 blanks representing words that are missing from the context. You are to put back in each of the blanks the missing word. Write your answers on the ANSWER SHEET. The time for this section is 25 minutes.
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.

题型:单项选择题

下列哪一个操作可以用来为一个备份操作手动分配通道?()

A.ALLOCATE CHANNEL

B.CREATE CHANNEL

C.CHANNEL ALLOCATE

D.CREATE LINK

题型:单项选择题

下列各项中,应作为企业职工薪酬核算的有( )。

A.企业为职工租人公寓支付的租金

B.企业为职工支付的培训费

C.企业为职工家属代垫的医药费

D.企业计提的工会经费

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