In April, the CPI's core index, which excludes food and energy, increased 0.3%, breaking a string of increases at 0.2% or less for eight months in a row.

在四月，消费者价格指数核心指数(不含食品和能源)增长了0.3%，打破了过去8个月来不高于0.2%的增长率的界限。

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Does core data implement that automatically? Does it create a key for any data model I create by default? If so, can I access that and take advantage of it? What happens if I delete a row?

数据实现自动？它为我创建的任何数据模型默认创建一个键？如果是这样，我可以访问和利用它吗？如果我删除一行，会发生什么？

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The intrinsic (sub)shell structure and core (valence) shell structure of atoms from the first- to the fifth- row in the periodic table are evaluated.

依据该理论，对前五周期原子的内禀（亚）壳层结构、内实（价）壳层结构进行了研究。

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