35. 下列何者是為鋅精礦適運溼度?
(A)4~12%
(B)5~12%
(C)6~12%
(D)7~12%
答案:登入後查看
統計: A(0), B(0), C(1), D(0), E(0) #3927144
統計: A(0), B(0), C(1), D(0), E(0) #3927144