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问题详情

料石（又称条石）是由（）

A、乱毛石略经加工而成

B、人工或机械开采出的较规则的六面体石块，略经加工凿琢而成的

C、爆破直接获得的

D、花岗岩等质地比较均匀的岩石开采琢制而成的

时间：2021-09-02 11:38 关键词：国家开放大学建筑材料(A)

答案解析

B

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