皮皮学，免费搜题
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搜题
【单选题】
中国城市的建立往往是根据以下哪个因素为中心的A.
政治中心
B.
文化中心
C.
经济中心
D.
自然资源元素
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
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