简述威廉姆森的区域成长理论。
参考答案：
威廉姆森的“区域成长”理论认为：一国或一地区经济发展的早期阶段，区域间成长的差异将会扩大，倾向不平衡成长，即区域发展差异的扩大是经济增长的必要条件；
之后，随着经济发展，区域间不平衡的程度将趋于稳定，当到达发展成熟阶段，区域间经济水平发展的差异逐渐趋于缩小，倾向平衡成长，此时期区域经济发展差异的缩小，又构成经济增长的必要条件。这是一种有时间变量的不平衡发展理论，即所谓倒“U”字型理论。
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| 1. I want to go swimming on Sunday. Where can I go? | ||
| A. Green Trees Gym. B. Red Apples Gym. C. Both Green Trees Gym and Red Apples Gym. D. You can't go swimming on Sunday. | ||
| 2. I want to play basketball on Monday morning. Where can I go? | ||
| A. Green Trees Gym. B. Red Apples Gym. C. Both Green Trees Gym and Red Apples Gym. D. Green Apples Gym. | ||
| 3. I play volleyball at 9:00 every morning. Where can you find me? | ||
| A. Green Trees Gym. B. Red Apples Gym. C. Both Green Trees Gym and Red Apples Gym. D. At home. | ||
| 4. I do aerobics every afternoon. So you can call me at 6589417. Do you know where I'm going to be? | ||
| A. At Green Balls Gym. B. At Red Apples Gym. C. in the school. D. On the playground. | ||
| 5. Which gym accepts (接受) mails from computer? | ||
| A. Green Trees Gym. B. Red Apples Gym. C. Green Apples Gym. D. Red Trees Gym. |