问题
选择题
In the United States, there is always flow of people to areas of country where more jobs can be found.[ ]
A. a; the
B. the; a
C. the; the
D. a; a
答案
答案：A
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In the United States, there is always flow of people to areas of country where more jobs can be found.[ ]
A. a; the
B. the; a
C. the; the
D. a; a
答案：A