122. 去除殘留氯可添加下列何種物質?
(A)硫酸銅
(B)硫代硫酸鈉
(C)石灰
(D)富來頓
答案:登入後查看
統計: A(0), B(1), C(0), D(0), E(0) #3722729
統計: A(0), B(1), C(0), D(0), E(0) #3722729