问题
单项选择题
在井田开拓方式中,常以()为依据,把井田开拓方式分为立井开拓、斜井开拓、平硐开拓和综合开拓等几种方式
A.井筒开采水平数目
B.阶段内的布置方式
C.井筒形式
D.矿井总体部署
答案
参考答案:C
在井田开拓方式中,常以()为依据,把井田开拓方式分为立井开拓、斜井开拓、平硐开拓和综合开拓等几种方式
A.井筒开采水平数目
B.阶段内的布置方式
C.井筒形式
D.矿井总体部署
参考答案:C
选用方框中合适的句子,补全对话。 | |
A: MeiMei, you look worried. What is the matter with you? B: 1_____ Then I am too tired to do well in the exam. A: That is too bad. 2_____ B: Yes. They say they don't know what to do. 3_____ A: What about your teacher? B: He says I should study harder, then I will feel better. But I have studied harder now. A: 4_____ B: Go out for a walk before the exam? Is that OK? A: 5_____ B: I will try. | |
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