Job Recruitment Website - Immigration policy - 1, the American population is mostly overseas immigrants and their descendants, of which more than 80% are ().

1, the American population is mostly overseas immigrants and their descendants, of which more than 80% are ().

1、

First, white people

2、

B, the population distribution is extremely unbalanced

3、

B. Oceania

4、

First, the land is all located in the north temperate zone.

5、

B, the Great Lakes and the Mississippi River have convenient water transportation conditions.

6、

D. new york

7、

B, near San Francisco