数学焦虑是一种常见现象，与智力无关，其诱因包括长期负面体验、社会暗示及大脑的应激反应，这种焦虑往往从童年接触数学题时的恐慌情绪开始，成年后在分摊餐费、辅导作业等场景中复发。

2025年12月27日，英国《泰晤士报》对人工智能安全专家Stuart ...

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In the West, freedom of expression is widely regarded as essential for revealing mistakes, exposing wrongdoing, and holding leaders accountable. It has become a sacrosanct principle, often accompanied ...

This photo taken on May 13, 2025 shows a view of a production line at the workshop of a vehicle company in Jiangdu District ...

An aerial drone photo taken on Nov. 21, 2025 shows a view of the Yangpu International Container Port in Yangpu Economic ...