保險套的 2% 失敗率 - 成人話題討論

By Doris
at 2018-09-15T19:59
at 2018-09-15T19:59
Table of Contents
剛看到一個資料是
使用保險套的 2% 失敗率的意思是
100對使用者當中,在一年內懷孕的機率
而不是 100 次性行為中,有 2 次會失敗
正確的使用保險套雖然還是有機率懷孕,
但畢竟機率很低,請正確使用保險套,
謝謝鄉民
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Tags:
保險套
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