在电子商务分类中，B to B是( )。A．消费者与消费者间的电子商务 B．企业间

简述癌基因的概念及分类。

苏联经济建设中存在哪些问题？我们从中应吸取什么教训？

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急性一氧化碳中毒时，尽早采用高压氧治疗的主要作用是

A．加速HbCO的解离

B．加速HbCO的合成

C．减少HbCO的合成

D．提高肺氧分压

E．提高血氧分压

Of all the areas of learning the most important is the development of attitudes. Emotional reactions as well as logical thought processes affect the behavior of most people.
"The burnt child fears the fire" is one instance; another is the rise of despots like Hitler. Both examples also point up the fact that attitudes stem from experience. In one case the experience was direct and impressive; in the other it was indirect and cumulative. The Nazis were indoctrinated largely by the speeches they heard and the books they read.
The classroom teacher in the elementary school is in a strategic position to influence attitudes. This is true partly because children acquire attitudes from those adults whose word they respect.
Another reason it is true is that pupils often delve somewhat deeply into a subject in school that has only been touched upon at home or has possibly never occurred to them before. To a child who had previously acquired little knowledge of Mexico, his teacher’s method of handling such a unit would greatly affect his attitude toward Mexicans.
The media through which the teacher can develop wholesome attitudes are innumerable. Social studies (with special reference to races, creeds and nationalities), science matters of health and safety, the very atmosphere of the classroom... these are a few of the fertile fields for the inculcation of proper emotional reactions.
However, when children come to school with undesirable attitudes, it is unwise for the teacher to attempt to change their feelings by cajoling or scolding them. She can achieve the proper effect by helping them obtain constructive experiences.
To illustrate, first grade pupils afraid of policemen will probably alter their attitudes after a classroom chat with the neighborhood officer in which he explains how he protects them. In the same way, a class of older children can develop attitudes through discussion, research, outside reading and all-day trips.
Finally, a teacher must constantly evaluate her own attitudes, because her influence can be deleterious if she has personal prejudices. This is especially true in respect to controversial issues and questions on which children should be encouraged to reach their own decisions as a result of objective analysis of all the facts.

A statement made or implied in the passage is that ______.

A．attitudes can be based on the learning of falsehoods

B．a child can develop in the classroom an attitude about the importance of brushing his teeth

C．attitudes cannot easily be changed by rewards and lectures .

D．the attitudes of elementary school-aged children are influenced primarily by their teachers

领导关系的两重属性中，（）占据主导地位。

A.自然属性

B.管理属性

C.权力属性

D.社会属性