Dorothy lived in the midst of the great Kansas prairies, with Uncle Henry, who was a farmer, and Aunt Em, who was the farmer’s wife. Their house was small, for the lumber to build...

初中历史知识归纳总结（打印版） 七年级（上册） ★第一课 祖国境内的远古居民 一、我国最早的人类 1．我国境内已知的最早的人类是元谋人，距今约170万年。 2．人和动物的根本区别是会不会制造...