钠石灰中加入硅酸盐的目的是()A.增加硬度B.增加吸收量C.降低硬度D.增加活性E.降低活性

作者: rantiku 人气: - 评论: 0
问题 钠石灰中加入硅酸盐的目的是()
选项 A.增加硬度 B.增加吸收量 C.降低硬度 D.增加活性 E.降低活性
答案 A
解析

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