单选题
According to the Bureau of the Census, what is an urban area?
A、
A chain of adjacent cities.
B、
An area with at least 50,000 people.
C、
The 18 largest cities.
D、
An area with 2,500 people or more.
【正确答案】
D
【答案解析】
[分析] 细节题型。 答案出自第二段The Bureau of the Census regards any area with more than 2,500 people as an urban area, and does not consider boundaries of cities and suburbs。
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