A.沉降分析 B.稠度试验 C.细筛分析 D.粗筛分析
A.5% B.10% C.15% D.20%
A.10mm B.20mm C.17mm D.25mm
A.5 B.7.5 C.10 D.10.5
A.175mm B.185mm C.190mm D.195mm