問題詳情

7. Auto racing started over one hundred years ago with cars ____, it seems to us now, at speeds of just 30 mph. In contrast, today’s cars can reach speeds of 200 mph on the track.
(A) speeding
(B) crawling
(C) rushing
(D) increasing

參考答案

答案:B
難度:困難0.285714
統計:A(5),B(4),C(1),D(2),E(0)

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