调度员要（）、态度和蔼、礼貌待人、热情服务。
A、工作认真
B、工作积极
C、工作马虎
参考答案：A
All his attention________on the computer game he was playing,so he even didn't notice his mother
enter the room. [ ]
A. has been fixed
B. was fixing
C. was fixed
D. fixed
关于中层管理者所需的技能，正确的是（）
A、需要较强的概念技能和技术技能
B、需要更多的人际技能和概念技能
C、需要更多的技术技能和人际技能
D、需要较强的概念技能
