主页
学科
搜索
账户
常见问题
当前学科:安全生产知识竞赛
题目:
多选题
前进式采煤方法不适于()。
A
高瓦斯矿井
B
突出矿井
C
容易自然
D
自然煤层
E
冲击地压矿井
答案:
<查看本题扣1积分>
查看答案
答案不对?请尝试站内搜索
推荐知识点:
最常用的诊断肠寄生虫的方法是()
为使柴油机各气缸内有相近的热力区作指标及动力均衡性,喷油泵组装后应具有同一()。
以下项目中不属于异常舌态者的是:()
During the project, requirements change for a variety of reasons. As needs change and as work proceeds, additional requirements are derived and changes may have to be made to the existing requirements. It is essential to manage these additions and changes efficiently and effectively. To effectively analyze the impact of the changes, it is necessary that the source of each requirement is known and the rationale for any change is documented. The project manager may, however, want to track appropriate measures of requirements volatility to judge whether new or revised()are necessary.
在计算教学中使用教学媒体,下列说法正确的是()
任何单位和个人不得非法占用变电设施用地、输电线路走廊和()。
矿石脉石中()高对高炉冶炼不利、
随着地图比例尺的缩小,不依比例符号数量将相对(),而依比例符号数量则相对()。
有关塑化液的叙述,不正确的是()
世界上第一个股票交易所于1602年在()成立。