【多选题】
以下哪些是炸药化学变化的形式？___
A. 融合
B. 燃烧
C. 爆轰
D. 热分解
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在多头掘进时，爆破母线要随用随挂。以下说法哪些是对的？___
A. 爆破母线必须挂在电缆、信号线下方，距离大于0.3米的地方
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C. 爆破母线可以从电气设备上通过
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爆后检查发现下列哪些现象可以说明存在盲炮？___
A. 在爆破地段范围内残留炮孔，地表无松动或应有的抛掷现象
B. 在抛掷爆破中，大部分或局部无抛掷现象
C. 两药包之问有显著的隔离，土石方崩塌范围较其他地段或原计算有显著差异
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以下哪些措施有助于防止导爆管起爆网路出现拒爆？___
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B. 用雷管起爆导爆管时，应采用反向连接
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D. 使用合格的导爆索
【多选题】
下列措施中哪些是处理浅孔盲炮时需要遵守的？___
A. 在距离炮孔10倍炮孔直径处钻平行孔装药爆破
B. 经检查确认起爆网路完好时，可重新起爆
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爆后检查发现下列哪些现象可以说明存在盲炮？___
A. 在爆破地段范围内残留炮孔，地表无松动或应有的抛掷现象
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【多选题】
以下哪些是水下爆破的特点？___
A. 钻孔时需要下套管
B. 需要按开挖断面和船位有序地进行钻孔爆破
C. 钻爆施工难度较陆域小，爆破后的碎石容易清碴
D. 爆破器材要有良好的防水密封性能
【多选题】
为防止发生因雷电引起的早爆事故，应采取哪些安全措施？___
A. 增加填塞长度
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C. 采用电起爆系统时，在爆区要设置避雷或预报系统
D. 装药、联线过程中遇有雷电来临征兆或预报时，应迅速撤离危险区内的一切人员
【多选题】
下列哪些规定是临时存放爆破器材作业应当遵守的？___
A. 临时存放处悬挂醒目标志，确需夜间存放的，晚上挂有红灯
B. 炸药与雷管分别堆垛存放，两者相距不少于25米
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