22 水在下列何種土壤之滲透係數(coefficient of permeability)最低?
(A)黏土(clay)
(B)砂(sand)
(C)卵石(gravel)
(D)砂土(silt)

答案:登入後查看
統計: A(6), B(0), C(0), D(0), E(0) #913085