1. The European Union countries were once worried that they would not have___________supplies of petroleum.
(A) sufficient
(B) efficient
(C) potential
(D) proficient

答案：登入後查看
統計： A(1), B(0), C(0), D(0), E(0) #3363542

詳解 (共 1 筆)

#6442849
Question Translatio...
(共 975 字，隱藏中）
前往觀看
1
0