8. The retired scientist was awarded a gold medal for his ____________ contribution to the medical research.
(A) confusing
(B) clumsy
(C) silly
(D) significant

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統計： A(23), B(31), C(15), D(147), E(0) #805049

詳解 (共 1 筆)

#1044389
contribution貢獻
clumsy笨拙
silly愚蠢
significant有意義的、重大的

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