土地类型的分布常按一定的格局组合而形成一个相对完整的区域。组合的形式多种多样,归纳起来可以分为()和()两大类。
参考答案:递变型组合;重复型组合
金融创新的内容?
Passage Three
Which of the following was NOT mentioned as a factor contributing to the spread of employment
A.The enclosures of the 17th and 18th centuries.
B.The development of factories.
C.Relief from housework on the part of women.
D.Development of modern means of transportation.