单项选择题
矿粉密度试验,同一试样应平行试验()次,取平均值作为试验结果,其不同试验结果的差值不得大于()g/cm3。
A.2,0.01
B.3,0.01
C.2,0.1
D.3,0.1
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单项选择题
A.2,0.01
B.3,0.01
C.2,0.1
D.3,0.1
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