單項選擇題
A.10% B.15% C.16% D.18%
A.K+ B.Fe2+ C.Ca2+ D.Cu2+
A.1MPa B.O.5MPa C.O.1MPa D.O.03MPa
A.分散 B.儲存 C.稀釋 D.下料
A.3%-5% B.5%-7% C.7%-9% D.9%-11%
A.加藥 B.稀釋 C.配比稀釋 D.注水
A.溶液 B.混合 C.稀釋 D.液體
A.緩慢 B.充分 C.簡單 D.快速
A.766.5nm B.589.0nm C.564.0nm D.404.4nm
A.776.5nm B.589.0nm C.404.4nm D.330.2nm
A.10mg/L B.20mg/L C.30mg/L D.40mg/L