水泥的凝结时间分为初凝和终凝时间,为满足水泥的施工要求,水泥初凝时间不 宜();当施工完毕则要求尽快硬化并具有强度,故终凝时间不宜()。A.太长、太长 ...

作者: rantiku 人气: - 评论: 0
问题 水泥的凝结时间分为初凝和终凝时间,为满足水泥的施工要求,水泥初凝时间不 宜();当施工完毕则要求尽快硬化并具有强度,故终凝时间不宜()。
选项 A.太长、太长 B.太长、太短 C.太短、太长 D.太短、太短
答案 C
解析

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