問題詳情
44.廢水中的硝酸鹽濃度為 30 mg/L，則廢水中的硝酸鹽氮濃度為何？
(A) 3.38
(B) 6.77
(C) 13.54
(D) 27.10
(A) 3.38
(B) 6.77
(C) 13.54
(D) 27.10
參考答案
答案：B
難度：非常簡單1
書單：沒有書單，新增
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