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有些青少年以至成人出现的不健全心理状态,往往开始于学龄前期。因此,早期保护和促进儿童身心健康,有着重要意义。为此,我们调查了某城矿两所
Some adolescents and adults appear unhealthy state of mind, often beginning in preschool age. Therefore, the early protection and promotion of children’s physical and mental health, is of great significance. To this end, we investigated two cities and mines