问题题干答案解析相关问题热门问题最新问题

问题详情

急倾斜薄矿体采用浅孔留矿法开采时,矿石借助自重由采场经放矿口直接放出,所采用的矿石运搬方式

A、机械运搬;

B、无轨设备运搬;

C、重力运搬;

D、爆力运搬

时间：2021-07-18 18:52 关键词：地质学专升本结晶学及矿物学期末考试资源勘查工程矿床学 2019级毕业清考（考试分）

答案解析

C
C

相关问题

boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
A cabinet or space containing the controls or valves for the fixed firefighting system must be（）.
A cabinet or space containing the controls or valves for the fixed firefighting system must be（）.