问题
多项选择题
通过客流的调查和对资料的分析，了解客流在（）的起伏变化情况，从而合理组织营运调度编制运行计划。
A.时间上
B.空间上
C.方向上
D.断面上
答案
参考答案：A, C, D
搜题请搜索小程序“爱下问搜题”
通过客流的调查和对资料的分析，了解客流在（）的起伏变化情况，从而合理组织营运调度编制运行计划。
A.时间上
B.空间上
C.方向上
D.断面上
参考答案：A, C, D
There is a big in our city. We can see many there. A(n) ,the biggest animal on land is also there. Many birds fly in the sky(在天空飞).Some beautiful ducks (鸭子)always in the river. What are these in the trees? Oh, they are .They like leaves. They are from Australia. Aren’t they cute? There’s a tiger in the cage(笼子) under the tree. It eats meat every day. I like the best because it only lives in China and it’s the symbol of .
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