单选题:下列关于尾矿的说法,正确的是( )。 题目分类:矿业工程 题目类型:单选题 查看权限:VIP 题目内容: 下列关于尾矿的说法,正确的是( )。 A.尾矿是指选矿后残剩的无用矸石 B.尾矿中有一部分是今后可能再利用的有用矿石 C.尾矿是一些石渣,堆放占地,但是无害 D.尾矿库要求具有渗水条件,其目的是排除尾矿的有害成分 参考答案: 答案解析:
防水混凝土施工期间应将地下水位降至防水工程底板垫层( )以下。 防水混凝土施工期间应将地下水位降至防水工程底板垫层( )以下。A.200mm B.300mm C.500mm D.600mm 分类:矿业工程 题型:单选题 查看答案
The passage is basically a________. The passage is basically a________.A.biography of John Paul Jones B.criticism of 分类:矿业工程 题型:单选题 查看答案
根据下面内容,回答题: There has been, in history, a man who was swall 根据下面内容,回答题: There has been, in history, a man who was swallowed by a whale and 分类:矿业工程 题型:单选题 查看答案
I wouldn't get so angry if you ________ more work done. I wouldn't get so angry if you ________ more work done.A.get B.got C.will get D 分类:矿业工程 题型:单选题 查看答案
He was told he could join the army when he ________ old eno He was told he could join the army when he ________ old enough.A.would be B.sho 分类:矿业工程 题型:单选题 查看答案