单项选择题
A.流动度B.填充性C.泵送性D.和易性
A.20minB.25minC.30minD.35min
A.≤100%B.≤105%C.≤115%D.≤125%
A.35%~45%B.37%~44%C.37%~48%D.35%~40%
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