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Frequentcoalmineaccidentshappeninourcountry．Iminkitisth...

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  • 问题详情：Frequentcoalmineaccidentshappeninourcountry．Iminkitisthemanagementsystemratherthantheminersthat____forthem．   A．istoblame                        B．isgoingtoblame      C．istobeblamed                ...
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