论文部分内容阅读
在自然界有许多现象的发生是周而复始的,可以发生在任何时点,女性月经的发生则属此现象。本文试用圆形分布法分析保定市女生月经初潮的分布规律,为学生保健工作提供科学依据。
There are many phenomena in nature occur over and over again, can occur at any time, the occurrence of women’s menstrual belong to this phenomenon. This paper tries to use circular distribution method to analyze the distribution of menarche in girls in Baoding city and provide a scientific basis for students’ health care work.