問題詳情

39.When a whip is snapped, it makes a loud cracking sound. Whips can accelerate to a speed of more than 700 miles per hour. Atthat speed a whip can break that sound barrier.In this passage, the word accelerate means _____.
(A) maintain
(B) speed up
(C) go slower
(D) exceed

參考答案

答案:B
難度:簡單0.880177
統計:A(25),B(595),C(8),D(48),E(0) #
個人:尚未作答書單:word boundary

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