某矿井井下工人在工作时发现矿井通风设备出现故障,遂向当班副矿长报告。副矿长因急于下班回家,未及时安排人员维修,导致瓦斯聚

某矿井井下工人在工作时发现矿井通风设备出现故障,遂向当班副矿长报告。副矿长因急于下班回家,未及时安排人员维修,导致瓦斯聚集发生爆炸,造成21人死亡、1人重伤。依

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矿山开采风险高、生产复杂,需要满足相关的安全标准和条件。依据《矿山安全法》的规定,下列关于矿山安全保障的说法,正确的是(

矿山开采风险高、生产复杂,需要满足相关的安全标准和条件。依据《矿山安全法》的规定,下列关于矿山安全保障的说法,正确的是( )。A.矿山设计保留的矿柱、岩柱,经风

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What difference does social media make to learning?

What difference does social media make to learning?A.Local knowledge and global

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What does the author say about living comfortably in the ci

What does the author say about living comfortably in the city?A.It incurs a hig

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It should be noted that many people feel their life is both

It should be noted that many people feel their life is both happy and meaningfu

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