問題詳情
15. The ancient empire has a highly developed social __________system, which divides people into nobles, workers, soldiers, and slaves.
(A) caste
(B) welfare
(C) nervous
(D) degree
參考答案
答案：A
難度：適中0.596364
統計：A(164),B(26),C(2),D(68),E(0) #
個人：尚未作答書單：vocabulary、greatly與highly之差異
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