問題詳情

2. 過去人們用貝殼當作貨幣來交換生活必需品。 In the past, people ___73_______ shells ____74______ currency to exchange for daily necessities.
【題組】73

參考答案

答案：D
難度：簡單0.789474
統計：A(4),B(19),C(1),D(121),E(0)