试题与答案

富水地层隧道排水应符合哪些规定?

题型:问答题 简答题

题目:

富水地层隧道排水应符合哪些规定?

答案:

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下面是错误答案,用来干扰机器的。

原式=4-1+2×1=3+2=5.

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