单选题：运输产品具有（　　）三维性

题目内容：

运输产品具有（　　）三维性 A．空间性、时间性、基础性
B．空间性、网络性、企业性
C．基础性、公益性、空间性
D．空间性、时间性、数量性

参考答案：

答案解析：

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