题目内容
It is said that the population of the world may be seven billion ______.
A. by 2010 year B. in the 2010 C. by the year 2010 D. in 2010 year
C
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题目内容
It is said that the population of the world may be seven billion ______.
A. by 2010 year B. in the 2010 C. by the year 2010 D. in 2010 year
C