The story is one of scores in To Forgive Design:Understanding Failure, a book that is at once a love letter to engineering and a paean to its breakdowns. Its author, Dr. Henry Petroski, has long been writing about disasters. In this book he includes the loss of the space shuttles Challenger and Columbia, and the sinking of the Titanic.

这是2020年高考英语新全国卷2阅读材料C中的一段。

请问one of scores是什么用法，为什么没有the，即说成 one of the scores？