A.礦山安全規(guī)程 B.行業(yè)技術(shù)規(guī)范 C.礦山安全規(guī)程和行業(yè)技術(shù)規(guī)范 D.強制性技術(shù)規(guī)范
A.10% B.20% C.30% D.40%
A.規(guī)范 B.技術(shù)規(guī)范 C.法律規(guī)范 D.社會規(guī)范