問題詳情

8. Flying economy on a long-haul flight, I had to leave my seat from time to time tostretch my leg and avoid muscle _____.
(A) strain
(B) drain
(C) train
(D) refrain

參考答案

答案：A
難度：適中0.4
統計：A(2),B(0),C(2),D(1),E(0)