是的呢
x活的长
【 在 jinbabawa 的大作中提到: 】
: 搜出来，这个叫Shettles method
: 但又说很难去验证。。。
: The idea that you can naturally control your baby’s sex comes from a theory developed by Dr. Landrum B. Shettles. The basis for the Shettles method starts with the fact that X-chromosome sperm (female) are on average slightly larger and thus slower movin
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FROM 73.13.160.*