铁线蕨长得比苔藓植物高大的根本原因是（） A.有了茎、叶等器官的分化 B.根、茎、叶

物理兴趣小组的同学独立组装成一盏台灯后，将其接入电路中。闭合开关时，发现台灯不亮，同时其他用电器也停止工作，经检查发现保险丝熔断。更换新的保险丝后，将台灯单独接入电路，又发现保险丝熔断，其原因可能是[ ]

A．台灯灯泡的两条接线相碰了　　　　　　　

B．灯泡的灯丝断了

C．室内电路中本来就存在短路现象　　　　　

D．台灯开关的两端短路

下面四句话中有一句缺少一个必不可少的“的”，请将这一句选出：

A．各公园门票必须严格执行国家统一收费标准

B．市物价局正在对群众反映较大问题进行检查

C．消费者有权向当地物价部门领导举报

D．如果超过规定收费标准，则属乱收费

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.

实行“自觉纪律”教育的社会是( )

A．奴隶社会
B．封建社会
C．资本主义社会
D．社会主义社会

弹簧式安全阀动作后（）自行复原。

A、不可以

B、可以

C、加外力可以

D、加外力不可以