搜题
问题   更新时间2023/4/3 12:59:00

大多数金属矿床矿石坚硬，通常情况下，适合于金属矿床开采的落矿方法是（ ）
A.凿岩爆破方法落矿
B.机械方法落矿
C.水力落矿
D.溶解落矿

答案
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D

出自：联大 >> 河南理工大学采矿概论

王老师:19139051760(拨打)
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