公安机关自觉地置于党委的领导之下,就是要积极主动地创造便于党委领导公安工作的条件,把接受党委的指导作为根本原则加以制度化,长期全面地贯彻执行.( )
参考答案:对
在机械制图中偏差为()减去基本尺寸所得代数差。
A、最大极限尺寸
B、最小极限尺寸
C、实际尺寸
D、(最大极限+最小极限)/2
A new subway will have been completed in the city by the end of the year 2007 , will be very convenient for us to get around shopping and sightseeing.
A.when it
B.where it
C.when that
D.which that