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为了了解我省中学生青春期发育状况,我们于1989年3~4月对我省兰州、榆中、定西、甘南等地九所中学的汉藏两个民族男生首次遗精和女生初潮年龄作了调查,现将调查结果报告如下:
In order to understand the puberty development of middle school students in our province, we investigated the first spermatorrhea and the age of girls in nine middle schools in Lanzhou, Yuzhong, Dingxi and Gannan of our province from March to April 1989, Now report the findings as follows: