阿摩線上測驗
13. During the time when slavery still existed in America, racial _______ was a fatal problem in the society.
(A) recession
(B) attribution
(C) consumption
(D) discrimination
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統計： A(65), B(58), C(41), D(586), E(0) #338456
統計： A(65), B(58), C(41), D(586), E(0) #338456
