当导水裂缝带范围内的含水层或老空积水等水体影响采掘安全时,应超前进行钻探疏放或注浆改造含水层,待放水完毕或注浆改造等工程结束、消除突水威胁后,方可进行采掘活动。
参考答案:对
睡眠多导描记仪可自动记录患者的:()
A.眼电图
B.脑电图
C.肌电图
D.血氧饱和度
E.心电图
China’s central government has____that it has sent a team to look into the use of “slave labor” at illegal brick kilns(窑) in Shanxi Province.
A.accounted
B.adopted
C.confirmed
D.registered