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。

The most immediate impact is on the bottom line, namely raw transport capacity. The Baotou-Shenmu Railway, a critical coal corridor, currently sees an annual freight about 180 million tonnes. This new ...