6. The professor was truly _____, with his speech moving the audience and concisely conveying the urgency of climate action.
(A) obscure
(B) ponderous
(C) eloquent
(D) verbose
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統計: A(8), B(11), C(18), D(4), E(0) #3710430
統計: A(8), B(11), C(18), D(4), E(0) #3710430