25. 下列何者是為銅精礦適運溼度?
(A)4~11.9%
(B)5~11.9%
(C)6~11.9%
(D)7~11.9%
答案:登入後查看
統計: A(2), B(1), C(2), D(13), E(0) #2852689
統計: A(2), B(1), C(2), D(13), E(0) #2852689