判断题根据《水利水电工程施工通用安全技术规程》,明挖爆破的解除信号是间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s。A对B错
判断题
根据《水利水电工程施工通用安全技术规程》,明挖爆破的解除信号是间断鸣三次长声,即鸣30s、停、鸣30s、停、鸣30s。
A
对
B
错
参考解析
解析:
暂无解析
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