A.150mm*150mm*150mm B.40mm*40mm*160mm C.70.7mm*70.7mm*70.7mm D.50mm*50mm*50mm
单项选择题水泥胶砂3d强度试验应在（）时间里进行
A.72h±30min B.72h±45min C.72h±1h D.72h±3h
单项选择题水泥胶砂强度试件在抗压试验时，规定以（）的速率均匀加载直到破坏
A.240N/s±20N/s B.2400N/s±200N/s C.500N/s±100N/s D.50N/s±5N/s
