【单选题】
[单选题]第1402题：关于爆炸，下列不正确的说法是___。
A. 爆炸的特点是具有破坏力，产生爆炸声和冲击波
B. 爆炸是一种极为迅速的物理和化学变化
C. 爆炸可分为物理爆炸和化学爆炸
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答案
B
解析
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[单选题]第1405题：《职业病防治法》规定为了预防控制和消除职业病危害、保护劳动者健康及其相关权益，促进经济发展。根据宪法___制定本法。
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[单选题]第1416题:典型火灾发展变化规律是___
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