A.0.01g/cm3 B.0.02g/cm3 C.0.03g/cm3 D.0.04g/cm3
A.不得大于鋼筋公稱(chēng)直的0.6倍 B.不得大于鋼筋公稱(chēng)直的0.5倍 C.不得大于鋼筋公稱(chēng)直的0.7倍 D.不得大于鋼筋公稱(chēng)直的0.8倍
A.16mm B.20mm C.25mm D.12mm