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    Did you hear about Zhao Xiaoting? She wasa college student in Wuhan. When she was incollege, she did well in all her subjects. And shewas s   1   to find a good job in big cities. Butin July 2010, she went to Guizhou to teach as av   2   . Her parents were very m   3    at herbecause of this.    

    When she got to a rural v   4   , she foundit was very p   5   .But she felt very l   6 _because people there were very friendly. Thenshe stayed there and taught the kids English, dancing and so on. People there loved her verymuch.    

    Most of the roads in Guizhou are throughthe mountains. Sometimes they were in d    7   while they were walking on the road. On July21th, 2010,  a big stone fell down from themountain and hit Zhao on the head when shewas walking on the road. It made her die.   Her death gave a great i    8   to thecollege students. They made a d    9   to go onteaching in these a   10   and help those poorchildren.

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在市场经济条件下，各种商品都存在着供求关系与价格的双向机制，这种制约导致的最终结果是（）。

A.刺激商品生产者改进技术、提高劳动生产率

B.调节社会资源在不同生产部门的分配

C.使商品价格围绕价值上下波动

D.经济过热，通货膨胀