schools within a school 中文意思是什麼
schools within a school
解釋
校中校-
Then within the area of zhandian district, zibo city, six high schools were chosen including three juniors and three seniors, which both include a key high school, an ordinary one and a rural one respectfully. from the six high schools 1, 400 students were chosen at random to take part in the investigation
在淄博市張店區以分層抽樣的方式選取了六所中學(三所初中、三所高中,初中、高中分別包括一所重點中學、普通中學和鄉村中學) ,對其中隨機抽取的1400名中學生進行了問卷調查。
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