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问题 单项选择题

Reye综合征患儿，入院时呈深昏迷，血糖为O.95mmol/L，凝血酶原时间为18s，血清钠130mmol/L，钾4mmol/L，氯108mmol/L，钙2.3mmol/L。血pH7.32。为了纠正其代谢紊乱，下列哪项不正确（）

A.纠正低血糖，10%葡萄糖溶液静脉滴注

B.20%甘露醇降低颅高压

C.维持电解质和酸碱平衡，纠正低血糖

D.维生素K静脉注射，纠正低凝血酶原

E.高热时使用阿司匹林降温

答案

参考答案：E

选择题

Cs是稳定的核电荷数最大的碱金属元素，下列关于铯及其化合物的叙述，正确的是(　　)

A．铯与冷水反应十分平缓并生成H2

B．铯与硫酸反应，生成CsSO4与H2

C．铯的氧化物可直接与水反应生成CsOH

D．铯在空气中燃烧生成Cs2O
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单项选择题

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.

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

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.
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