每隔（）个月检查备用操舵装置的活络部分，并加以除锈、涂油、润滑，做好转换操作试验一次。
A.2
B.3
C.5
D.6
参考答案：D
____ whether he ever considered ____ that during discussions, he said, "No, I've got my job and
they've got their job." [ ]
A. Asked; saying
B. Asking; saying
C. Being asked; to say
D. To be asked; to say
公安工作的成败，公安队伍战斗力的强弱，取决于( )。
A．公安队伍管理机制
B．人民警察素质的高低
C．公安机关领导班子建设
D．公安装备的科技含量
