57. During the electrolysis of a molten salt, which statement is not correct?
(A) The ions only move when a current flows.
(B) Positive ions are attracted to the negative electrode.
(C) Positive ions gain electrons at the negative electrode.
(D) Negative ions lose electrons at the positive electrode.

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統計： A(3), B(0), C(1), D(0), E(0) #2319874