单项选择题
混凝土拌合物含气量测定仪压力表的量程为()MPa,精度为()MPa。
A.0-0.25,0.1;
B.0-0.25,0.01;
C.0-0.15,0.1;
D.0-0.15,0.01。
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单项选择题
A.0-0.25,0.1;
B.0-0.25,0.01;
C.0-0.15,0.1;
D.0-0.15,0.01。
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