多项选择题
A.直径102mm,高52mm B.直径100mm,高51mm C.直径99mm,高51mm D.直径103mm,高47mm
A.亚硝酸盐 B.矿粉 C.钢纤维 D.粉煤灰
A.20.2 B.22.2 C.18.2 D.19.2