# Copilot／t4／1回目／2026-09-29
# モデル表示: （読み取れず）／所要 23.2秒／185文字
# 採点: 正解（URL 3/3本が実在）

https://www.nist.gov/pml/us-surveyfoot/revised-unit-conversion-factors https://www.nist.gov/pml/special-publication-330/sp-330-section-4 https://www.bipm.org/en/publications/si-brochure