It's reported that in Chengguan Junior Middle School in Gucheng County, north China's Shanxi Province, in a classroom of 60 square meters sit more than 100 students. In this school, the smallest...
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It's reported that in Chengguan Junior Middle School in Gucheng County, north China's Shanxi Province, in a classroom of 60 square meters sit more than 100 students. In this school, the smallest...