A.重粘土 B.粘性土 C.砂性土 D.砂土
A.2M(基本模數(shù))的倍數(shù) B.3M的倍數(shù) C.4M的倍數(shù) D.5M的倍數(shù)
A.C20B.M10C.C10D.M5