阿摩線上測驗
7. In the absence of definitive proof, the hypothesis remains _____, inviting further empirical investigation.
(A) speculative
(B) conclusive
(C) spectacular
(D) fortunate
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統計： A(19), B(1), C(6), D(1), E(0) #3792840
統計： A(19), B(1), C(6), D(1), E(0) #3792840
