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问题详情

在内部，对强度增长起主导作用的是（　　）

A、干燥硬化

B、结晶硬化

C、吸水硬化

D、碳酸化硬化

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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