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188项现行公开记录，目录日期涵盖2005年至2026年。

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188项现行公开记录

ICEQC-R-2013-03 — Instructional Time Lost to Disruption: A Measurement and Reporting Framework cover

ICEQC-R-2013-03

Instructional Time Lost to Disruption: A Measurement and Reporting Framework

目录日期: April 3, 2013
研究类别: Data and Indicator Research