锚喷加金属网的作用是()
A、增加喷层强度
B、防止围岩脱落
C、增加强度并防止脱落
参考答案:C
长期解决不好违章问题,就是失职、失责。
The person who should be in control of the project during project management planning is the ().
A.project manager
B.team member
C.functional manager
D.sponsor