每日钉一下（黄金基金和实物黄金，哪个收益更好呢？）

Group 1 - The average returns of enhanced index funds have historically outperformed their corresponding indices in most years [1] - However, there are instances where some funds underperform the index, indicating the importance of careful selection [1] Group 2 - A free course is available that introduces investment methods for enhanced index funds, aimed at helping investors choose high-quality funds [2]