首页/ 题库 / [单选题]我国露天矿开采烟煤时,最大经济合理剥采比的答案

我国露天矿开采烟煤时,最大经济合理剥采比为:【 】

单选题
2021-09-01 20:19
A、4m3/t
B、6m3/t
C、8m3/t
D、12m3/t
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正确答案
C

试题解析

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