Friday, September 23, 2022
问题:水泥混凝土的初凝要快,以期迅速达到要求强度。()...
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:作冲击试验时,为防止试件伤人,操作人员应注意事项。...
Sunday, September 18, 2022
问题:击实试验的结果干密度和含水率的关系曲线不能绘出峰值点时,()。...
Thursday, September 22, 2022
问题:摆式摩擦仪橡胶片端部若在长度方向上磨耗了1.0mm,仍可继续使用。...
Friday, September 23, 2022
Thursday, September 22, 2022
问题:对土工织物做撕裂强度试验时,应取撕裂力的几个峰值平均值计算撕裂强度。...
Thursday, September 22, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
Monday, September 19, 2022
问题:为了评定和控制外加剂产品的质量,对于减水剂、引气减水剂、引气剂、早强剂,缓凝剂等常做的检测项目是()。...
Thursday, September 22, 2022
Tuesday, September 20, 2022
Tuesday, August 9, 2022
问题:单选题实验室应建立和维持程序构成其()的所有文件。A 质量体系B 管理体系C 文件体系D 文件程序...
Friday, October 20, 2023
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:检验高速公路表面层的摩擦系数,宜在竣工后的()采用摩擦系数测定车测定。...
Wednesday, September 14, 2022
问题:桥梁锚具组装件静载锚固性能试验加载以预应力钢绞线抗拉强度标准值分()级等速加载。...
Thursday, September 15, 2022