门禁系统由()组成。
A、读卡器
B、电锁
C、控制器
D、报警器
参考答案:A, B, C
— Is that Jack speaking?
— Sorry, he isn't in right now. He _ the cinema with his aunt. [ ]
A. has been to
B. has gone to
C. have been to
D. have gone to
村庄整治应综合考虑(),量力而行地选择整治项目,分别实施。
A.影响性
B.急需性
C.公益性
D.经济可承受性
E.持续性