阿摩線上測驗
11. The scientist conducted extensive experiments for the__________of the newly proposed theory.
(A) entertainment
(B) validation
(C) juggling
(D) colonialism
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統計： A(0), B(3), C(0), D(0), E(0) #3353219
統計： A(0), B(3), C(0), D(0), E(0) #3353219
