阿摩線上測驗
31. When a metal corrodes, what is happening chemically?
(A) The metal atoms lose electrons.
(B) The metal atoms gain electrons.
(C) Electrons are not involved.
(D) The metal is combining with nitrogen gas.
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統計： A(7), B(0), C(1), D(0), E(0) #3577920
統計： A(7), B(0), C(1), D(0), E(0) #3577920
