甲、乙两种固体物质的溶解度曲线如图所示。 (1)小强同学要配制甲、乙两种物质的

题型:选择题

问题:

甲、乙两种固体物质的溶解度曲线如图所示。

(1)小强同学要配制甲、乙两种物质的饱和溶液,而且溶质的质量分数相同,他应该将温度控制在      ℃。

(2)40℃时45g乙物质加到100g水中,充分搅拌后,让乙充分溶解,若将此溶液的温度升高到50℃,则该溶液的质量分数      (填“变大”、“变小”或“不变”)。

(3)可通过                          的方法将甲的不饱和溶液变为饱和溶液。

考点:固体溶解度气体溶解度
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函数yx2-4x+3化成y=(xm)2k的形式是                  (     )

A.y=(x-2)2-1

B.y=(x+2)2-1

C.y=(x-2)2+7

D.y=(x+2)2+7

题型:选择题

对孩子来说,没有哪种()比同龄人的音容笑貌、一举一动更能引起心灵的共鸣。填入括号最恰当的一项是:()

A.方

B.方式

C.分寸

D.行为

题型:选择题

当你不同意某规定时你也服从它吗______

A.从不
B.较少
C.较多
D.总是

题型:选择题

某公司要对本公司所有员工进行一次综合素质测试,包括人格、能力、情绪三部分,结果出来后,有15人不服被裁的决定。
根据上述材料,回答下列问题。

该公司在人格测试中认为人格是由( )决定的。

A.心情

B.遗传

C.环境

D.情境

题型: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.

The word "despot" underlined in Paragraph 2 means a person ______.
A. who enjoys a high reputation
B. who is very successful in politics
C. with unlimited powers
D. who deposits a large sum of money in a bank

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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