一套住房所需要的钢材要远远多于服装、彩电、冰箱等产品，一部小汽车需要的材料和零件也远远多于自行车、手表、空调等产品。房地产和汽车工业的快速发展，往往带动相关 部门以超常的速度发展。这表明： [ ]
A、生产决定消费，生产结构决定消费结构
B、企业生产必须节约资源，降低消耗
C、企业要面向市场，生产适销对路的产品
D、消费结构的优化升级是推动经济增长的强大动力
答案：D
| 阅读下列短文，选择可以填入空白处的最佳选项。 | ||||
| My name is Martin. Years ago, I went to Michigan in the United States __1__ an exchange student. I wanted to improve my English and learn about the culture there. __2__, I learned something else: When you are in trouble, you should believe love is here and there. On the 26th of August, my host family __3__ me up from the airport in a big American car. In the car, I did not talk much __4__ my English was poor. And I tried to answer their questions fast and go to bed early. The first week at my new home was OK. The following weeks, I __5__ that the family was really strict and cold. One day, the son of the family __6__ a baby parrot as a gift. Later on, the bird was really sick. But the child told his mom it was because every night, when __7__ was sleeping, I poured some dirty water straight at the bird. My host mom __8__ the lie (谎言) of her son and my sad life there started. Then one day the parrot was __9__. I had to leave the home. The family all thought I killed it. __10__, I made more friends in the school and I could move to live with them. They gave me love when I was in trouble. Now, I visit them once or twice a year. | ||||
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