633.鹽性鹼土指土壤中飽和浸出液之導電度在25℃時：
(A)小於4millimhos/cm
(B)等於 4millimhos/cm
(C)大於4millimhos/cm
(D)0millimhos/cm。

答案：登入後查看
統計： A(1), B(1), C(3), D(0), E(0) #2946918