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美国概况练习题：
1 The traditional dividing line in America between “east” and “west” is_____.
2 The earliest part in America to be found and taken over by early settlers is ____.
3 The largest racial group in the whole population of U.S.A is____.
1 The traditional dividing line in America between “east” and “west” is_____.
2 The earliest part in America to be found and taken over by early settlers is ____.
3 The largest racial group in the whole population of U.S.A is____.
