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18.54

18.54

18.54

18.54

1

The results were as follows : 1 . 63% of participants had experience in sexual intercourse and the mean age of having first sex was 18. 54. 2.

研究结果如下：一、受访者中有 63%的人有过性经验，第一次性交时的平均年龄为 18.54 岁。

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