若某材料电阻率随温度升高而单调下降,该材料是() A.本征半导体 B.杂质半导体 C

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问题:

若某材料电阻率随温度升高而单调下降,该材料是()

A.本征半导体

B.杂质半导体

C.金属导体

D.简并半导体

考点:半导体物理半导体物理题库
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左旋多巴抗帕金森病的作用()

A.对重症及年老衰弱患者疗效好

B.对肌肉僵直及运动困难疗效差

C.对肌肉震颤症状疗效好

D.对轻症及较年轻患者疗效较好

E.作用较快,常用药1周就出现客观体征的改善,1个月获得最大疗效

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压井液固相含量越高,越不易损害地层和堵塞射孔孔眼。

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在64位高档微机中,CPU能同时处理  【1】  个字节的二进制数据。

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     Culture means any human behavior that is learned in human society. All of the meaningful parts of a

culture are passed on to different generations through tradition or social learning. From this view point,

all human groups have a culture. Culture exists in agricultural as well as industrialized societies.

     Culture is necessary for the survival and existence of human beings as human beings. Practically

everything humans know, think, value, feel, and do is learned through taking part in a socio-cultural

system. This statement is well supported by some well-written cases. Here is one of the cases of children

growing up apart from human society. In the province of Kidnaper in India, the director of a children's

home was told by local villagers that there were "ghost(鬼)" in the forest. Upon looking into the case, the

director found that two children, one about eight years old and the other about six years old, appeared to

have been living with a pack of wolves in the forest. These children were the ghosts described by the

local people. In his diary, the director describes his first view of Kamala(as the older child was named)

and Amala(the name given to the younger child).

     Kamala was a terrible-looking being-the head, a big ball of something covering the shoulders. Close

at its heels there came another terrible creature exactly like the first, but smaller in size. Their eyes were

very bright and sharp, unlike human eyes. They were very fond of raw meat and raw milk. Gradually, as

they got stronger, they began going on all fours, and afterwards began to run on all fours like squirrels.

Children learn human language in the same way they learn other kinds of human behavior by taking part

in a cultural community. They learn a certain human language as well as certain kinds of human behavior

through their membership in a certain cultural community.

1. From the passage we can learn that               .

A. human beings can develop human abilities only if they are raised by their biological parents

B. Amala and Kamala were raised in forest by ghosts

C. human beings will not grow up human unless they are raised by human beings in human culture

D. culture refers only to the high art and classical music of a particular society

2. Who were the "ghosts" of the Kidnapper forest seen by the local villagers?

A. They were two children Amala and Kamala, who ran on fours.

B. They were two squirrels, Amala and Kamala, who ran on fours.

C. They were two young wolves, Amala and Kamala, whose eyes were bright and sharp.

D. They were two children, Amala and Kamala, who were growing up in a children's home.

3. How would you understand the description by the director "they began going on all fours," in his

diary?

A. They began to continue with all their four eyes.

B. They started walking with their four feet.

C. They began going with their four hands.

D. They started walking with both their hands and feet.

4. Which of the following do you think is the best title to this passage?

A. Wolf-children                      

B. Culture and Human Behavior

C. Culture and Language Learning         

D. A director's Diary

题型:单项选择题

财政对调节社会供求总量平衡方面的手段有()

A.通过财政预算进行调节

B.通过制度性安排,发挥财政“内在稳定器”的作用

C.调整产业结构

D.调整资产结构

E.调整投资结构

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