题目内容：
运输生产是人们使用运输工具，实现旅客和货物在（ ）变化的活动。
A．形态上 B．重量上
C．空间地理位置上
D．质量上
参考答案：
答案解析：
单选题：运输生产是人们使用运输工具，实现旅客和货物在（ ）变化的活动。
- 题目分类：中级运输经济(铁路)
- 题目类型：单选题
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B．重量上
C．空间地理位置上
D．质量上
B．重量上
C．空间地理位置上
D．质量上
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