A.1:2000~1:20000 B.1:500~1:2000 C.1:1000~1:5000 D.1:2000~1:50000
A.28 B.60 C.45 D.120
A.土中孔隙體積與土粒體積之比 B.土中水體積與土體總體積之比 C.土中孔隙體積與土體總體積之比 D.土中水體積與土??傮w積之比