34. The word “barrier” in line 14 could be best replaced by _____.
(A) transfer
(B) obstacle
(C) implementation
(D) charge

答案：登入後查看
統計： A(7), B(142), C(9), D(13), E(0) #571337

詳解 (共 1 筆)

#913476
（一）轉讓 
（二）阻礙 
（三）實施 
（四）負載 
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