单项选择题

The European Union countries were once worried that they would not have ().

A. sufficient
B. efficient
C. potential
D. proficient

<上一题 目录 下一题>
热门 试题

单项选择题
80().

A. calculation
B. assignment
C. budget
D. effect
单项选择题
79().

A. disposals
B. properties
C. certainties
D. blends
相关试题