問題詳情
31. In dealing with each other, the Native American tribes of the Great Plains used an intricate sign language that consisted of a series of mutually understanding gestures.
(A)each other
(B)used
(C)consisted of
(D)understanding
(E)gestures
參考答案
答案：D
難度：適中0.5
統計：A(2),B(0),C(0),D(2),E(0)