According to American historians and specialists in demography, that is, the study of statistics related to population, there are ______ great population movements in the history of the United States.
A、four
B、five
C、six
D、seven
【正确答案】：A
【题目解析】：According to American historians and specialists in demography, that is, the study of statistics related to population, there are four great population movements in the history of the United States.参加教材P187。
掌握“Population Movement(USA)”知识点。
