阿摩線上測驗
7. The automobile gained in_________as it raced down the steep hill.
(A) aridity
(B) momentum
(C) prism
(D) strategy
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統計： A(15), B(29), C(7), D(7), E(0) #1184693
統計： A(15), B(29), C(7), D(7), E(0) #1184693
