A.強(qiáng)度較高B.耐火性較好C.延性較好D.耐久性好
A.150×150mmB.100×150mmC.100×100mmD.65×65mm
A.一般項(xiàng)B.控制項(xiàng)C.評(píng)估項(xiàng)D.優(yōu)選項(xiàng)