题目内容
Beijing is one of the ____________ in the world today．
A．busiest city B．busiest cities C．busy city D．busy cities
试题答案
1、B
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Beijing is one of the ____________ in the world today．
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查看习题详情和答案>>Beijing is one of the in the world today．
A．busiest city B．busiest cities C．busy city D．busy cities
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