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西湖都冻住了！全球变暖为何寒潮威力还如此之大？
澎湃新闻消息，12月21日6时中央气象台继续发布低温黄色预警，预计12月21日8时至24日8时，我国西北地区东北部、内蒙古中西部、华北、东北地区、黄淮及以南大部地区日最低气温或平均气温较历史同期偏低5℃以上，其中，[详细]
2023-12-22 07:24 分类：问答How do I get ActiveRecord to show the next id (last + 1) in Ruby on Rails?
Is there a compact way with ActiveRecord to query for what id it\'s going to use next if an object was going to be p开发者_如何学Pythonersisted to the database? In SQL, a query like this would look so[详细]
2022-12-28 17:41 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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