题目内容：
Why are there still high buildings, or even skyscrapers in many cities?
A．Because they are the symbol of modern tim B．Because many cities now lack building spac =^_^= 考试大¤在线¤考试中心=^_^=
C．Because high buildings are an important financial source of a city's budge
D．Because high buildings represent the level of a country's science and technolog
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