64.下列何者可用為養殖魚池在空池時殺藻劑?
(A)CuSO4
(B)MgSO4
(C)KMnO4
(D)NaCl
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統計: A(556), B(59), C(256), D(15), E(0) #857324
統計: A(556), B(59), C(256), D(15), E(0) #857324