题目内容
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提问人:网友ying58
发布时间:2022-01-07
[主观题]
Paving means a surface of flat stones or material like stone on the ground, which is only used in urban space.
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A、It is available nearby.
B、It is cost-effective.
C、There are a lot of wood at the time.
D、It is the best building material.
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