光爆锚喷巷道,主要巷道有中线净宽允许误差()mm。一般巷道有中线允许误差为().
参考答案:100;150
The old rules have to be _____because they only applied to the circumstances that existed when they were made a hundred years ago.
A.developed
B.established
C.observed
D.revised
劳动争议仲裁委员会主任应由 ( )担任。
A.劳动行政部门代表
B.同级工会代表
C.用人单位代表
D.职工代表