The practical sample of the Chinese life classroom in middle schools.
中学语文生命课堂的实践样态。
Finally, almost a third of the SAMPLE came from professional, middle-class families.
最后，几乎三分之一的样本来自专业人士的中产家庭。
Middle school students sample included two population, superior grade and inferior grade.
其中，初中生群体又包括快班和慢班两个小的被试群体。
Middle school students sample included two population, superior grade and inferior grade.
其中，初中生群体又包括快班和慢班两个小的被试群体。
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