問題詳情
【題組】65.Underwater archaeologists are worried because_____.
(A)sea hunters have better diving equipment
(B)their knowledge of world history is limited
(C)dredging machines cause damage to the ports
(D)sold artifacts can hardly be regained for research
參考答案
答案：D
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)