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ni dui zi wei zhi duo shao
Pages: 12-13
Year: Issue:  1
Journal: Knowledge is Power

Abstract:  进入青春期的男孩女孩,大多处在初、高中阶段.由于学校的教育,相关书籍的增多等等,对青春期身体各部分的变化,多数已不再感到惶惑、神秘.但是,统计数据显示,自慰问题仍然较大范围地困扰着青少年和他们的父母.
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