Wednesday, October 18, 2023
问题:采煤工作面上隅角瓦斯积聚的原因是什么,如何处理?...
Thursday, April 27, 2023
Monday, September 12, 2022
Tuesday, September 13, 2022
问题:国家安监局提出的加强安全生产监督管理,要大力推进安全生产“三项建...
Monday, September 12, 2022
Monday, June 5, 2023
Saturday, February 3, 2024
Tuesday, September 13, 2022
Tuesday, October 17, 2023
Tuesday, September 13, 2022
Thursday, November 9, 2023
Saturday, April 1, 2023
问题:矿井应有及时填绘的反映实际情况的()、()、()和()等图纸资料。A、井上下对照图B、采掘工程平面图C、通风系统图D、避灾路线图E、电路图...
Tuesday, October 17, 2023
Thursday, June 15, 2023
问题:发现工作场所职业病危害因素不符合国家职业卫生标准和卫生要求时,用...
Monday, September 12, 2022
问题:打扫卫生、擦拭设备时,严禁用水或()擦拭设备或电气元件,以防发生短路或触电事故。A、抹布B、扫帚C、湿布D、风管...
Wednesday, April 17, 2024
问题:重大生产安全事故是指造成()以上()以下死亡,或者50人以上10...
Monday, September 12, 2022
Tuesday, September 13, 2022
Saturday, April 1, 2023
Monday, September 12, 2022