A.沉降分析 B.稠度試驗 C.細篩分析 D.粗篩分析
A.不少于500g B.不大于500g C.不少于1000g D.不大于1000g
A.0.2~0.5mm B.0.3~0.6mm C.0.15~0.3mm D.0.5~1.0mm