做到实事求是，离不开调查研究这个基本功。
Nature, Published online: 24 February 2026; doi:10.1038/d41586-026-00298-1
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The average 30-year fixed mortgage rate is around 5.98% to 5.99% this week, Freddie Mac said Thursday. The percentage is down sharply from 6.8% to 6.9% a year ago and from peaks near 8% in late 2023, per The Wall Street Journal. On a typical loan, that rate drop can cut monthly payments by hundreds of dollars for home buyers.