近日，Xi地铁6号线二期成功开通运营。在Xi地铁钟楼站换乘通道内，施工过程中发现的古水井被就地复原，引起了众多网友的关注。这个古井场的两口井分别起源于元代和清代。现场展示了开发者_如何转开发以古井器物为主体
Suppose I have an integral that\'s bounded on one (or both) end by (-)infinity.AFAICT, I can\'t analytically solve this problem, it takes brute force (e.g. using a Left Riemann Sum).I\'m having troubl
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