2023 Hebei Question 9 Single-choice Differentiating 2023_省自主命题(河北) 9. 为防患于未然,新矿山开发首先应做好( ) A. 生态环境修复B. 智能开采设计C. 矿山安全监测D. 资源环境评价 Answer keyD ☆ SaveCan't do it, show the explanation查看原卷 →